luxon.js

/*eslint-disable */
const luxon = (function (exports) {
  function _defineProperties(target, props) {
    for (let i = 0; i < props.length; i++) {
      const descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ('value' in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }

  function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
    if (staticProps) _defineProperties(Constructor, staticProps);
    return Constructor;
  }

  function _extends() {
    _extends = Object.assign || function (target) {
      for (let i = 1; i < arguments.length; i++) {
        const source = arguments[i];

        for (const key in source) {
          if (Object.prototype.hasOwnProperty.call(source, key)) {
            target[key] = source[key];
          }
        }
      }

      return target;
    };

    return _extends.apply(this, arguments);
  }

  function _inheritsLoose(subClass, superClass) {
    subClass.prototype = Object.create(superClass.prototype);
    subClass.prototype.constructor = subClass;

    _setPrototypeOf(subClass, superClass);
  }

  function _getPrototypeOf(o) {
    _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
      return o.__proto__ || Object.getPrototypeOf(o);
    };
    return _getPrototypeOf(o);
  }

  function _setPrototypeOf(o, p) {
    _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
      o.__proto__ = p;
      return o;
    };

    return _setPrototypeOf(o, p);
  }

  function _isNativeReflectConstruct() {
    if (typeof Reflect === 'undefined' || !Reflect.construct) return false;
    if (Reflect.construct.sham) return false;
    if (typeof Proxy === 'function') return true;

    try {
      Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], () => {}));
      return true;
    } catch (e) {
      return false;
    }
  }

  function _construct(Parent, args, Class) {
    if (_isNativeReflectConstruct()) {
      _construct = Reflect.construct;
    } else {
      _construct = function _construct(Parent, args, Class) {
        const a = [null];
        a.push.apply(a, args);
        const Constructor = Function.bind.apply(Parent, a);
        const instance = new Constructor();
        if (Class) _setPrototypeOf(instance, Class.prototype);
        return instance;
      };
    }

    return _construct.apply(null, arguments);
  }

  function _isNativeFunction(fn) {
    return Function.toString.call(fn).indexOf('[native code]') !== -1;
  }

  function _wrapNativeSuper(Class) {
    const _cache = typeof Map === 'function' ? new Map() : undefined;

    _wrapNativeSuper = function _wrapNativeSuper(Class) {
      if (Class === null || !_isNativeFunction(Class)) return Class;

      if (typeof Class !== 'function') {
        throw new TypeError('Super expression must either be null or a function');
      }

      if (typeof _cache !== 'undefined') {
        if (_cache.has(Class)) return _cache.get(Class);

        _cache.set(Class, Wrapper);
      }

      function Wrapper() {
        return _construct(Class, arguments, _getPrototypeOf(this).constructor);
      }

      Wrapper.prototype = Object.create(Class.prototype, {
        constructor: {
          value: Wrapper,
          enumerable: false,
          writable: true,
          configurable: true,
        },
      });
      return _setPrototypeOf(Wrapper, Class);
    };

    return _wrapNativeSuper(Class);
  }

  function _objectWithoutPropertiesLoose(source, excluded) {
    if (source == null) return {};
    const target = {};
    const sourceKeys = Object.keys(source);
    let key; let
      i;

    for (i = 0; i < sourceKeys.length; i++) {
      key = sourceKeys[i];
      if (excluded.indexOf(key) >= 0) continue;
      target[key] = source[key];
    }

    return target;
  }

  function _unsupportedIterableToArray(o, minLen) {
    if (!o) return;
    if (typeof o === 'string') return _arrayLikeToArray(o, minLen);
    let n = Object.prototype.toString.call(o).slice(8, -1);
    if (n === 'Object' && o.constructor) n = o.constructor.name;
    if (n === 'Map' || n === 'Set') return Array.from(o);
    if (n === 'Arguments' || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
  }

  function _arrayLikeToArray(arr, len) {
    if (len == null || len > arr.length) len = arr.length;

    for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];

    return arr2;
  }

  function _createForOfIteratorHelperLoose(o, allowArrayLike) {
    let it = typeof Symbol !== 'undefined' && o[Symbol.iterator] || o['@@iterator'];
    if (it) return (it = it.call(o)).next.bind(it);

    if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === 'number') {
      if (it) o = it;
      let i = 0;
      return function () {
        if (i >= o.length) {
          return {
            done: true,
          };
        }
        return {
          done: false,
          value: o[i++],
        };
      };
    }

    throw new TypeError('Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.');
  }

  // these aren't really private, but nor are they really useful to document

  /**
   * @private
   */
  const LuxonError = /* #__PURE__ */(function (_Error) {
    _inheritsLoose(LuxonError, _Error);

    function LuxonError() {
      return _Error.apply(this, arguments) || this;
    }

    return LuxonError;
  }(/* #__PURE__ */_wrapNativeSuper(Error)));
  /**
   * @private
   */

  const InvalidDateTimeError = /* #__PURE__ */(function (_LuxonError) {
    _inheritsLoose(InvalidDateTimeError, _LuxonError);

    function InvalidDateTimeError(reason) {
      return _LuxonError.call(this, `Invalid DateTime: ${reason.toMessage()}`) || this;
    }

    return InvalidDateTimeError;
  }(LuxonError));
  /**
   * @private
   */

  const InvalidIntervalError = /* #__PURE__ */(function (_LuxonError2) {
    _inheritsLoose(InvalidIntervalError, _LuxonError2);

    function InvalidIntervalError(reason) {
      return _LuxonError2.call(this, `Invalid Interval: ${reason.toMessage()}`) || this;
    }

    return InvalidIntervalError;
  }(LuxonError));
  /**
   * @private
   */

  const InvalidDurationError = /* #__PURE__ */(function (_LuxonError3) {
    _inheritsLoose(InvalidDurationError, _LuxonError3);

    function InvalidDurationError(reason) {
      return _LuxonError3.call(this, `Invalid Duration: ${reason.toMessage()}`) || this;
    }

    return InvalidDurationError;
  }(LuxonError));
  /**
   * @private
   */

  const ConflictingSpecificationError = /* #__PURE__ */(function (_LuxonError4) {
    _inheritsLoose(ConflictingSpecificationError, _LuxonError4);

    function ConflictingSpecificationError() {
      return _LuxonError4.apply(this, arguments) || this;
    }

    return ConflictingSpecificationError;
  }(LuxonError));
  /**
   * @private
   */

  const InvalidUnitError = /* #__PURE__ */(function (_LuxonError5) {
    _inheritsLoose(InvalidUnitError, _LuxonError5);

    function InvalidUnitError(unit) {
      return _LuxonError5.call(this, `Invalid unit ${unit}`) || this;
    }

    return InvalidUnitError;
  }(LuxonError));
  /**
   * @private
   */

  const InvalidArgumentError = /* #__PURE__ */(function (_LuxonError6) {
    _inheritsLoose(InvalidArgumentError, _LuxonError6);

    function InvalidArgumentError() {
      return _LuxonError6.apply(this, arguments) || this;
    }

    return InvalidArgumentError;
  }(LuxonError));
  /**
   * @private
   */

  const ZoneIsAbstractError = /* #__PURE__ */(function (_LuxonError7) {
    _inheritsLoose(ZoneIsAbstractError, _LuxonError7);

    function ZoneIsAbstractError() {
      return _LuxonError7.call(this, 'Zone is an abstract class') || this;
    }

    return ZoneIsAbstractError;
  }(LuxonError));

  /**
   * @private
   */
  const n = 'numeric';
  const s = 'short';
  const l = 'long';
  const DATE_SHORT = {
    year: n,
    month: n,
    day: n,
  };
  const DATE_MED = {
    year: n,
    month: s,
    day: n,
  };
  const DATE_MED_WITH_WEEKDAY = {
    year: n,
    month: s,
    day: n,
    weekday: s,
  };
  const DATE_FULL = {
    year: n,
    month: l,
    day: n,
  };
  const DATE_HUGE = {
    year: n,
    month: l,
    day: n,
    weekday: l,
  };
  const TIME_SIMPLE = {
    hour: n,
    minute: n,
  };
  const TIME_WITH_SECONDS = {
    hour: n,
    minute: n,
    second: n,
  };
  const TIME_WITH_SHORT_OFFSET = {
    hour: n,
    minute: n,
    second: n,
    timeZoneName: s,
  };
  const TIME_WITH_LONG_OFFSET = {
    hour: n,
    minute: n,
    second: n,
    timeZoneName: l,
  };
  const TIME_24_SIMPLE = {
    hour: n,
    minute: n,
    hourCycle: 'h23',
  };
  const TIME_24_WITH_SECONDS = {
    hour: n,
    minute: n,
    second: n,
    hourCycle: 'h23',
  };
  const TIME_24_WITH_SHORT_OFFSET = {
    hour: n,
    minute: n,
    second: n,
    hourCycle: 'h23',
    timeZoneName: s,
  };
  const TIME_24_WITH_LONG_OFFSET = {
    hour: n,
    minute: n,
    second: n,
    hourCycle: 'h23',
    timeZoneName: l,
  };
  const DATETIME_SHORT = {
    year: n,
    month: n,
    day: n,
    hour: n,
    minute: n,
  };
  const DATETIME_SHORT_WITH_SECONDS = {
    year: n,
    month: n,
    day: n,
    hour: n,
    minute: n,
    second: n,
  };
  const DATETIME_MED = {
    year: n,
    month: s,
    day: n,
    hour: n,
    minute: n,
  };
  const DATETIME_MED_WITH_SECONDS = {
    year: n,
    month: s,
    day: n,
    hour: n,
    minute: n,
    second: n,
  };
  const DATETIME_MED_WITH_WEEKDAY = {
    year: n,
    month: s,
    day: n,
    weekday: s,
    hour: n,
    minute: n,
  };
  const DATETIME_FULL = {
    year: n,
    month: l,
    day: n,
    hour: n,
    minute: n,
    timeZoneName: s,
  };
  const DATETIME_FULL_WITH_SECONDS = {
    year: n,
    month: l,
    day: n,
    hour: n,
    minute: n,
    second: n,
    timeZoneName: s,
  };
  const DATETIME_HUGE = {
    year: n,
    month: l,
    day: n,
    weekday: l,
    hour: n,
    minute: n,
    timeZoneName: l,
  };
  const DATETIME_HUGE_WITH_SECONDS = {
    year: n,
    month: l,
    day: n,
    weekday: l,
    hour: n,
    minute: n,
    second: n,
    timeZoneName: l,
  };

  /**
   * @private
   */
  // TYPES

  function isUndefined(o) {
    return typeof o === 'undefined';
  }
  function isNumber(o) {
    return typeof o === 'number';
  }
  function isInteger(o) {
    return typeof o === 'number' && o % 1 === 0;
  }
  function isString(o) {
    return typeof o === 'string';
  }
  function isDate(o) {
    return Object.prototype.toString.call(o) === '[object Date]';
  } // CAPABILITIES

  function hasRelative() {
    try {
      return typeof Intl !== 'undefined' && !!Intl.RelativeTimeFormat;
    } catch (e) {
      return false;
    }
  } // OBJECTS AND ARRAYS

  function maybeArray(thing) {
    return Array.isArray(thing) ? thing : [thing];
  }
  function bestBy(arr, by, compare) {
    if (arr.length === 0) {
      return undefined;
    }

    return arr.reduce((best, next) => {
      const pair = [by(next), next];

      if (!best) {
        return pair;
      } if (compare(best[0], pair[0]) === best[0]) {
        return best;
      }
      return pair;
    }, null)[1];
  }
  function pick(obj, keys) {
    return keys.reduce((a, k) => {
      a[k] = obj[k];
      return a;
    }, {});
  }
  function hasOwnProperty(obj, prop) {
    return Object.prototype.hasOwnProperty.call(obj, prop);
  } // NUMBERS AND STRINGS

  function integerBetween(thing, bottom, top) {
    return isInteger(thing) && thing >= bottom && thing <= top;
  } // x % n but takes the sign of n instead of x

  function floorMod(x, n) {
    return x - n * Math.floor(x / n);
  }
  function padStart(input, n) {
    if (n === void 0) {
      n = 2;
    }

    const minus = input < 0 ? '-' : '';
    const target = minus ? input * -1 : input;
    let result;

    if (target.toString().length < n) {
      result = ('0'.repeat(n) + target).slice(-n);
    } else {
      result = target.toString();
    }

    return `${minus}${result}`;
  }
  function parseInteger(string) {
    if (isUndefined(string) || string === null || string === '') {
      return undefined;
    }
    return parseInt(string, 10);
  }
  function parseFloating(string) {
    if (isUndefined(string) || string === null || string === '') {
      return undefined;
    }
    return parseFloat(string);
  }
  function parseMillis(fraction) {
    // Return undefined (instead of 0) in these cases, where fraction is not set
    if (isUndefined(fraction) || fraction === null || fraction === '') {
      return undefined;
    }
    const f = parseFloat(`0.${fraction}`) * 1000;
    return Math.floor(f);
  }
  function roundTo(number, digits, towardZero) {
    if (towardZero === void 0) {
      towardZero = false;
    }

    const factor = Math.pow(10, digits);
    const rounder = towardZero ? Math.trunc : Math.round;
    return rounder(number * factor) / factor;
  } // DATE BASICS

  function isLeapYear(year) {
    return year % 4 === 0 && (year % 100 !== 0 || year % 400 === 0);
  }
  function daysInYear(year) {
    return isLeapYear(year) ? 366 : 365;
  }
  function daysInMonth(year, month) {
    const modMonth = floorMod(month - 1, 12) + 1;
    const modYear = year + (month - modMonth) / 12;

    if (modMonth === 2) {
      return isLeapYear(modYear) ? 29 : 28;
    }
    return [31, null, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31][modMonth - 1];
  } // covert a calendar object to a local timestamp (epoch, but with the offset baked in)

  function objToLocalTS(obj) {
    let d = Date.UTC(obj.year, obj.month - 1, obj.day, obj.hour, obj.minute, obj.second, obj.millisecond); // for legacy reasons, years between 0 and 99 are interpreted as 19XX; revert that

    if (obj.year < 100 && obj.year >= 0) {
      d = new Date(d);
      d.setUTCFullYear(d.getUTCFullYear() - 1900);
    }

    return +d;
  }
  function weeksInWeekYear(weekYear) {
    const p1 = (weekYear + Math.floor(weekYear / 4) - Math.floor(weekYear / 100) + Math.floor(weekYear / 400)) % 7;
    const last = weekYear - 1;
    const p2 = (last + Math.floor(last / 4) - Math.floor(last / 100) + Math.floor(last / 400)) % 7;
    return p1 === 4 || p2 === 3 ? 53 : 52;
  }
  function untruncateYear(year) {
    if (year > 99) {
      return year;
    } return year > 60 ? 1900 + year : 2000 + year;
  } // PARSING

  function parseZoneInfo(ts, offsetFormat, locale, timeZone) {
    if (timeZone === void 0) {
      timeZone = null;
    }

    const date = new Date(ts);
    const intlOpts = {
      hourCycle: 'h23',
      year: 'numeric',
      month: '2-digit',
      day: '2-digit',
      hour: '2-digit',
      minute: '2-digit',
    };

    if (timeZone) {
      intlOpts.timeZone = timeZone;
    }

    const modified = { timeZoneName: offsetFormat, ...intlOpts };

    const parsed = new Intl.DateTimeFormat(locale, modified).formatToParts(date).find((m) => m.type.toLowerCase() === 'timezonename');
    return parsed ? parsed.value : null;
  } // signedOffset('-5', '30') -> -330

  function signedOffset(offHourStr, offMinuteStr) {
    let offHour = parseInt(offHourStr, 10); // don't || this because we want to preserve -0

    if (Number.isNaN(offHour)) {
      offHour = 0;
    }

    const offMin = parseInt(offMinuteStr, 10) || 0;
    const offMinSigned = offHour < 0 || Object.is(offHour, -0) ? -offMin : offMin;
    return offHour * 60 + offMinSigned;
  } // COERCION

  function asNumber(value) {
    const numericValue = Number(value);
    if (typeof value === 'boolean' || value === '' || Number.isNaN(numericValue)) throw new InvalidArgumentError(`Invalid unit value ${value}`);
    return numericValue;
  }
  function normalizeObject(obj, normalizer) {
    const normalized = {};

    for (const u in obj) {
      if (hasOwnProperty(obj, u)) {
        const v = obj[u];
        if (v === undefined || v === null) continue;
        normalized[normalizer(u)] = asNumber(v);
      }
    }

    return normalized;
  }
  function formatOffset(offset, format) {
    const hours = Math.trunc(Math.abs(offset / 60));
    const minutes = Math.trunc(Math.abs(offset % 60));
    const sign = offset >= 0 ? '+' : '-';

    switch (format) {
      case 'short':
        return `${sign}${padStart(hours, 2)}:${padStart(minutes, 2)}`;

      case 'narrow':
        return `${sign}${hours}${minutes > 0 ? `:${minutes}` : ''}`;

      case 'techie':
        return `${sign}${padStart(hours, 2)}${padStart(minutes, 2)}`;

      default:
        throw new RangeError(`Value format ${format} is out of range for property format`);
    }
  }
  function timeObject(obj) {
    return pick(obj, ['hour', 'minute', 'second', 'millisecond']);
  }
  const ianaRegex = /[A-Za-z_+-]{1,256}(:?\/[A-Za-z0-9_+-]{1,256}(\/[A-Za-z0-9_+-]{1,256})?)?/;

  /**
   * @private
   */

  const monthsLong = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
  const monthsShort = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
  const monthsNarrow = ['J', 'F', 'M', 'A', 'M', 'J', 'J', 'A', 'S', 'O', 'N', 'D'];
  function months(length) {
    switch (length) {
      case 'narrow':
        return [].concat(monthsNarrow);

      case 'short':
        return [].concat(monthsShort);

      case 'long':
        return [].concat(monthsLong);

      case 'numeric':
        return ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12'];

      case '2-digit':
        return ['01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12'];

      default:
        return null;
    }
  }
  const weekdaysLong = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday'];
  const weekdaysShort = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'];
  const weekdaysNarrow = ['M', 'T', 'W', 'T', 'F', 'S', 'S'];
  function weekdays(length) {
    switch (length) {
      case 'narrow':
        return [].concat(weekdaysNarrow);

      case 'short':
        return [].concat(weekdaysShort);

      case 'long':
        return [].concat(weekdaysLong);

      case 'numeric':
        return ['1', '2', '3', '4', '5', '6', '7'];

      default:
        return null;
    }
  }
  const meridiems = ['AM', 'PM'];
  const erasLong = ['Before Christ', 'Anno Domini'];
  const erasShort = ['BC', 'AD'];
  const erasNarrow = ['B', 'A'];
  function eras(length) {
    switch (length) {
      case 'narrow':
        return [].concat(erasNarrow);

      case 'short':
        return [].concat(erasShort);

      case 'long':
        return [].concat(erasLong);

      default:
        return null;
    }
  }
  function meridiemForDateTime(dt) {
    return meridiems[dt.hour < 12 ? 0 : 1];
  }
  function weekdayForDateTime(dt, length) {
    return weekdays(length)[dt.weekday - 1];
  }
  function monthForDateTime(dt, length) {
    return months(length)[dt.month - 1];
  }
  function eraForDateTime(dt, length) {
    return eras(length)[dt.year < 0 ? 0 : 1];
  }
  function formatRelativeTime(unit, count, numeric, narrow) {
    if (numeric === void 0) {
      numeric = 'always';
    }

    if (narrow === void 0) {
      narrow = false;
    }

    const units = {
      years: ['year', 'yr.'],
      quarters: ['quarter', 'qtr.'],
      months: ['month', 'mo.'],
      weeks: ['week', 'wk.'],
      days: ['day', 'day', 'days'],
      hours: ['hour', 'hr.'],
      minutes: ['minute', 'min.'],
      seconds: ['second', 'sec.'],
    };
    const lastable = ['hours', 'minutes', 'seconds'].indexOf(unit) === -1;

    if (numeric === 'auto' && lastable) {
      const isDay = unit === 'days';

      switch (count) {
        case 1:
          return isDay ? 'tomorrow' : `next ${units[unit][0]}`;

        case -1:
          return isDay ? 'yesterday' : `last ${units[unit][0]}`;

        case 0:
          return isDay ? 'today' : `this ${units[unit][0]}`;
      }
    }

    const isInPast = Object.is(count, -0) || count < 0;
    const fmtValue = Math.abs(count);
    const singular = fmtValue === 1;
    const lilUnits = units[unit];
    const fmtUnit = narrow ? singular ? lilUnits[1] : lilUnits[2] || lilUnits[1] : singular ? units[unit][0] : unit;
    return isInPast ? `${fmtValue} ${fmtUnit} ago` : `in ${fmtValue} ${fmtUnit}`;
  }

  function stringifyTokens(splits, tokenToString) {
    let s = '';

    for (var _iterator = _createForOfIteratorHelperLoose(splits), _step; !(_step = _iterator()).done;) {
      const token = _step.value;

      if (token.literal) {
        s += token.val;
      } else {
        s += tokenToString(token.val);
      }
    }

    return s;
  }

  const _macroTokenToFormatOpts = {
    D: DATE_SHORT,
    DD: DATE_MED,
    DDD: DATE_FULL,
    DDDD: DATE_HUGE,
    t: TIME_SIMPLE,
    tt: TIME_WITH_SECONDS,
    ttt: TIME_WITH_SHORT_OFFSET,
    tttt: TIME_WITH_LONG_OFFSET,
    T: TIME_24_SIMPLE,
    TT: TIME_24_WITH_SECONDS,
    TTT: TIME_24_WITH_SHORT_OFFSET,
    TTTT: TIME_24_WITH_LONG_OFFSET,
    f: DATETIME_SHORT,
    ff: DATETIME_MED,
    fff: DATETIME_FULL,
    ffff: DATETIME_HUGE,
    F: DATETIME_SHORT_WITH_SECONDS,
    FF: DATETIME_MED_WITH_SECONDS,
    FFF: DATETIME_FULL_WITH_SECONDS,
    FFFF: DATETIME_HUGE_WITH_SECONDS,
  };
  /**
   * @private
   */

  const Formatter = /* #__PURE__ */(function () {
    Formatter.create = function create(locale, opts) {
      if (opts === void 0) {
        opts = {};
      }

      return new Formatter(locale, opts);
    };

    Formatter.parseFormat = function parseFormat(fmt) {
      let current = null;
      let currentFull = '';
      let bracketed = false;
      const splits = [];

      for (let i = 0; i < fmt.length; i++) {
        const c = fmt.charAt(i);

        if (c === "'") {
          if (currentFull.length > 0) {
            splits.push({
              literal: bracketed,
              val: currentFull,
            });
          }

          current = null;
          currentFull = '';
          bracketed = !bracketed;
        } else if (bracketed) {
          currentFull += c;
        } else if (c === current) {
          currentFull += c;
        } else {
          if (currentFull.length > 0) {
            splits.push({
              literal: false,
              val: currentFull,
            });
          }

          currentFull = c;
          current = c;
        }
      }

      if (currentFull.length > 0) {
        splits.push({
          literal: bracketed,
          val: currentFull,
        });
      }

      return splits;
    };

    Formatter.macroTokenToFormatOpts = function macroTokenToFormatOpts(token) {
      return _macroTokenToFormatOpts[token];
    };

    function Formatter(locale, formatOpts) {
      this.opts = formatOpts;
      this.loc = locale;
      this.systemLoc = null;
    }

    const _proto = Formatter.prototype;

    _proto.formatWithSystemDefault = function formatWithSystemDefault(dt, opts) {
      if (this.systemLoc === null) {
        this.systemLoc = this.loc.redefaultToSystem();
      }

      const df = this.systemLoc.dtFormatter(dt, { ...this.opts, ...opts });
      return df.format();
    };

    _proto.formatDateTime = function formatDateTime(dt, opts) {
      if (opts === void 0) {
        opts = {};
      }

      const df = this.loc.dtFormatter(dt, { ...this.opts, ...opts });
      return df.format();
    };

    _proto.formatDateTimeParts = function formatDateTimeParts(dt, opts) {
      if (opts === void 0) {
        opts = {};
      }

      const df = this.loc.dtFormatter(dt, { ...this.opts, ...opts });
      return df.formatToParts();
    };

    _proto.resolvedOptions = function resolvedOptions(dt, opts) {
      if (opts === void 0) {
        opts = {};
      }

      const df = this.loc.dtFormatter(dt, { ...this.opts, ...opts });
      return df.resolvedOptions();
    };

    _proto.num = function num(n, p) {
      if (p === void 0) {
        p = 0;
      }

      // we get some perf out of doing this here, annoyingly
      if (this.opts.forceSimple) {
        return padStart(n, p);
      }

      const opts = { ...this.opts };

      if (p > 0) {
        opts.padTo = p;
      }

      return this.loc.numberFormatter(opts).format(n);
    };

    _proto.formatDateTimeFromString = function formatDateTimeFromString(dt, fmt) {
      const _this = this;

      const knownEnglish = this.loc.listingMode() === 'en';
      const useDateTimeFormatter = this.loc.outputCalendar && this.loc.outputCalendar !== 'gregory';
      const string = function string(opts, extract) {
        return _this.loc.extract(dt, opts, extract);
      };
      const formatOffset = function formatOffset(opts) {
        if (dt.isOffsetFixed && dt.offset === 0 && opts.allowZ) {
          return 'Z';
        }

        return dt.isValid ? dt.zone.formatOffset(dt.ts, opts.format) : '';
      };
      const meridiem = function meridiem() {
        return knownEnglish ? meridiemForDateTime(dt) : string({
          hour: 'numeric',
          hourCycle: 'h12',
        }, 'dayperiod');
      };
      const month = function month(length, standalone) {
        return knownEnglish ? monthForDateTime(dt, length) : string(standalone ? {
          month: length,
        } : {
          month: length,
          day: 'numeric',
        }, 'month');
      };
      const weekday = function weekday(length, standalone) {
        return knownEnglish ? weekdayForDateTime(dt, length) : string(standalone ? {
          weekday: length,
        } : {
          weekday: length,
          month: 'long',
          day: 'numeric',
        }, 'weekday');
      };
      const maybeMacro = function maybeMacro(token) {
        const formatOpts = Formatter.macroTokenToFormatOpts(token);

        if (formatOpts) {
          return _this.formatWithSystemDefault(dt, formatOpts);
        }
        return token;
      };
      const era = function era(length) {
        return knownEnglish ? eraForDateTime(dt, length) : string({
          era: length,
        }, 'era');
      };
      const tokenToString = function tokenToString(token) {
        // Where possible: http://cldr.unicode.org/translation/date-time-1/date-time#TOC-Standalone-vs.-Format-Styles
        switch (token) {
          // ms
          case 'S':
            return _this.num(dt.millisecond);

          case 'u': // falls through

          case 'SSS':
            return _this.num(dt.millisecond, 3);
            // seconds

          case 's':
            return _this.num(dt.second);

          case 'ss':
            return _this.num(dt.second, 2);
            // fractional seconds

          case 'uu':
            return _this.num(Math.floor(dt.millisecond / 10), 2);

          case 'uuu':
            return _this.num(Math.floor(dt.millisecond / 100));
            // minutes

          case 'm':
            return _this.num(dt.minute);

          case 'mm':
            return _this.num(dt.minute, 2);
            // hours

          case 'h':
            return _this.num(dt.hour % 12 === 0 ? 12 : dt.hour % 12);

          case 'hh':
            return _this.num(dt.hour % 12 === 0 ? 12 : dt.hour % 12, 2);

          case 'H':
            return _this.num(dt.hour);

          case 'HH':
            return _this.num(dt.hour, 2);
            // offset

          case 'Z':
            // like +6
            return formatOffset({
              format: 'narrow',
              allowZ: _this.opts.allowZ,
            });

          case 'ZZ':
            // like +06:00
            return formatOffset({
              format: 'short',
              allowZ: _this.opts.allowZ,
            });

          case 'ZZZ':
            // like +0600
            return formatOffset({
              format: 'techie',
              allowZ: _this.opts.allowZ,
            });

          case 'ZZZZ':
            // like EST
            return dt.zone.offsetName(dt.ts, {
              format: 'short',
              locale: _this.loc.locale,
            });

          case 'ZZZZZ':
            // like Eastern Standard Time
            return dt.zone.offsetName(dt.ts, {
              format: 'long',
              locale: _this.loc.locale,
            });
            // zone

          case 'z':
            // like America/New_York
            return dt.zoneName;
            // meridiems

          case 'a':
            return meridiem();
            // dates

          case 'd':
            return useDateTimeFormatter ? string({
              day: 'numeric',
            }, 'day') : _this.num(dt.day);

          case 'dd':
            return useDateTimeFormatter ? string({
              day: '2-digit',
            }, 'day') : _this.num(dt.day, 2);
            // weekdays - standalone

          case 'c':
            // like 1
            return _this.num(dt.weekday);

          case 'ccc':
            // like 'Tues'
            return weekday('short', true);

          case 'cccc':
            // like 'Tuesday'
            return weekday('long', true);

          case 'ccccc':
            // like 'T'
            return weekday('narrow', true);
            // weekdays - format

          case 'E':
            // like 1
            return _this.num(dt.weekday);

          case 'EEE':
            // like 'Tues'
            return weekday('short', false);

          case 'EEEE':
            // like 'Tuesday'
            return weekday('long', false);

          case 'EEEEE':
            // like 'T'
            return weekday('narrow', false);
            // months - standalone

          case 'L':
            // like 1
            return useDateTimeFormatter ? string({
              month: 'numeric',
              day: 'numeric',
            }, 'month') : _this.num(dt.month);

          case 'LL':
            // like 01, doesn't seem to work
            return useDateTimeFormatter ? string({
              month: '2-digit',
              day: 'numeric',
            }, 'month') : _this.num(dt.month, 2);

          case 'LLL':
            // like Jan
            return month('short', true);

          case 'LLLL':
            // like January
            return month('long', true);

          case 'LLLLL':
            // like J
            return month('narrow', true);
            // months - format

          case 'M':
            // like 1
            return useDateTimeFormatter ? string({
              month: 'numeric',
            }, 'month') : _this.num(dt.month);

          case 'MM':
            // like 01
            return useDateTimeFormatter ? string({
              month: '2-digit',
            }, 'month') : _this.num(dt.month, 2);

          case 'MMM':
            // like Jan
            return month('short', false);

          case 'MMMM':
            // like January
            return month('long', false);

          case 'MMMMM':
            // like J
            return month('narrow', false);
            // years

          case 'y':
            // like 2014
            return useDateTimeFormatter ? string({
              year: 'numeric',
            }, 'year') : _this.num(dt.year);

          case 'yy':
            // like 14
            return useDateTimeFormatter ? string({
              year: '2-digit',
            }, 'year') : _this.num(dt.year.toString().slice(-2), 2);

          case 'yyyy':
            // like 0012
            return useDateTimeFormatter ? string({
              year: 'numeric',
            }, 'year') : _this.num(dt.year, 4);

          case 'yyyyyy':
            // like 000012
            return useDateTimeFormatter ? string({
              year: 'numeric',
            }, 'year') : _this.num(dt.year, 6);
            // eras

          case 'G':
            // like AD
            return era('short');

          case 'GG':
            // like Anno Domini
            return era('long');

          case 'GGGGG':
            return era('narrow');

          case 'kk':
            return _this.num(dt.weekYear.toString().slice(-2), 2);

          case 'kkkk':
            return _this.num(dt.weekYear, 4);

          case 'W':
            return _this.num(dt.weekNumber);

          case 'WW':
            return _this.num(dt.weekNumber, 2);

          case 'o':
            return _this.num(dt.ordinal);

          case 'ooo':
            return _this.num(dt.ordinal, 3);

          case 'q':
            // like 1
            return _this.num(dt.quarter);

          case 'qq':
            // like 01
            return _this.num(dt.quarter, 2);

          case 'X':
            return _this.num(Math.floor(dt.ts / 1000));

          case 'x':
            return _this.num(dt.ts);

          default:
            return maybeMacro(token);
        }
      };

      return stringifyTokens(Formatter.parseFormat(fmt), tokenToString);
    };

    _proto.formatDurationFromString = function formatDurationFromString(dur, fmt) {
      const _this2 = this;

      const tokenToField = function tokenToField(token) {
        switch (token[0]) {
          case 'S':
            return 'millisecond';

          case 's':
            return 'second';

          case 'm':
            return 'minute';

          case 'h':
            return 'hour';

          case 'd':
            return 'day';

          case 'M':
            return 'month';

          case 'y':
            return 'year';

          default:
            return null;
        }
      };
      const tokenToString = function tokenToString(lildur) {
        return function (token) {
          const mapped = tokenToField(token);

          if (mapped) {
            return _this2.num(lildur.get(mapped), token.length);
          }
          return token;
        };
      };
      const tokens = Formatter.parseFormat(fmt);
      const realTokens = tokens.reduce((found, _ref) => {
        const { literal } = _ref;
        const { val } = _ref;
        return literal ? found : found.concat(val);
      }, []);
      const collapsed = dur.shiftTo.apply(dur, realTokens.map(tokenToField).filter((t) => t));

      return stringifyTokens(tokens, tokenToString(collapsed));
    };

    return Formatter;
  }());

  const Invalid = /* #__PURE__ */(function () {
    function Invalid(reason, explanation) {
      this.reason = reason;
      this.explanation = explanation;
    }

    const _proto = Invalid.prototype;

    _proto.toMessage = function toMessage() {
      if (this.explanation) {
        return `${this.reason}: ${this.explanation}`;
      }
      return this.reason;
    };

    return Invalid;
  }());

  /**
   * @interface
   */

  const Zone = /* #__PURE__ */(function () {
    function Zone() {}

    const _proto = Zone.prototype;

    /**
     * Returns the offset's common name (such as EST) at the specified timestamp
     * @abstract
     * @param {number} ts - Epoch milliseconds for which to get the name
     * @param {Object} opts - Options to affect the format
     * @param {string} opts.format - What style of offset to return. Accepts 'long' or 'short'.
     * @param {string} opts.locale - What locale to return the offset name in.
     * @return {string}
     */
    _proto.offsetName = function offsetName(ts, opts) {
      throw new ZoneIsAbstractError();
    }
    /**
     * Returns the offset's value as a string
     * @abstract
     * @param {number} ts - Epoch milliseconds for which to get the offset
     * @param {string} format - What style of offset to return.
     *                          Accepts 'narrow', 'short', or 'techie'. Returning '+6', '+06:00', or '+0600' respectively
     * @return {string}
     */
    ;

    _proto.formatOffset = function formatOffset(ts, format) {
      throw new ZoneIsAbstractError();
    }
    /**
     * Return the offset in minutes for this zone at the specified timestamp.
     * @abstract
     * @param {number} ts - Epoch milliseconds for which to compute the offset
     * @return {number}
     */
    ;

    _proto.offset = function offset(ts) {
      throw new ZoneIsAbstractError();
    }
    /**
     * Return whether this Zone is equal to another zone
     * @abstract
     * @param {Zone} otherZone - the zone to compare
     * @return {boolean}
     */
    ;

    _proto.equals = function equals(otherZone) {
      throw new ZoneIsAbstractError();
    }
    /**
     * Return whether this Zone is valid.
     * @abstract
     * @type {boolean}
     */
    ;

    _createClass(Zone, [{
      key: 'type',
      get:
      /**
       * The type of zone
       * @abstract
       * @type {string}
       */
      function get() {
        throw new ZoneIsAbstractError();
      },
      /**
       * The name of this zone.
       * @abstract
       * @type {string}
       */

    }, {
      key: 'name',
      get: function get() {
        throw new ZoneIsAbstractError();
      },
      /**
       * Returns whether the offset is known to be fixed for the whole year.
       * @abstract
       * @type {boolean}
       */

    }, {
      key: 'isUniversal',
      get: function get() {
        throw new ZoneIsAbstractError();
      },
    }, {
      key: 'isValid',
      get: function get() {
        throw new ZoneIsAbstractError();
      },
    }]);

    return Zone;
  }());

  let singleton$1 = null;
  /**
   * Represents the local zone for this JavaScript environment.
   * @implements {Zone}
   */

  const SystemZone = /* #__PURE__ */(function (_Zone) {
    _inheritsLoose(SystemZone, _Zone);

    function SystemZone() {
      return _Zone.apply(this, arguments) || this;
    }

    const _proto = SystemZone.prototype;

    /** @override * */
    _proto.offsetName = function offsetName(ts, _ref) {
      const { format } = _ref;
      const { locale } = _ref;
      return parseZoneInfo(ts, format, locale);
    }
    /** @override * */
    ;

    _proto.formatOffset = function formatOffset$1(ts, format) {
      return formatOffset(this.offset(ts), format);
    }
    /** @override * */
    ;

    _proto.offset = function offset(ts) {
      return -new Date(ts).getTimezoneOffset();
    }
    /** @override * */
    ;

    _proto.equals = function equals(otherZone) {
      return otherZone.type === 'system';
    }
    /** @override * */
    ;

    _createClass(SystemZone, [{
      key: 'type',
      get:
      /** @override * */
      function get() {
        return 'system';
      },
      /** @override * */

    }, {
      key: 'name',
      get: function get() {
        return new Intl.DateTimeFormat().resolvedOptions().timeZone;
      },
      /** @override * */

    }, {
      key: 'isUniversal',
      get: function get() {
        return false;
      },
    }, {
      key: 'isValid',
      get: function get() {
        return true;
      },
    }], [{
      key: 'instance',
      get:
      /**
       * Get a singleton instance of the local zone
       * @return {SystemZone}
       */
      function get() {
        if (singleton$1 === null) {
          singleton$1 = new SystemZone();
        }

        return singleton$1;
      },
    }]);

    return SystemZone;
  }(Zone));

  const matchingRegex = RegExp(`^${ianaRegex.source}$`);
  let dtfCache = {};

  function makeDTF(zone) {
    if (!dtfCache[zone]) {
      dtfCache[zone] = new Intl.DateTimeFormat('en-US', {
        hour12: false,
        timeZone: zone,
        year: 'numeric',
        month: '2-digit',
        day: '2-digit',
        hour: '2-digit',
        minute: '2-digit',
        second: '2-digit',
      });
    }

    return dtfCache[zone];
  }

  const typeToPos = {
    year: 0,
    month: 1,
    day: 2,
    hour: 3,
    minute: 4,
    second: 5,
  };

  function hackyOffset(dtf, date) {
    const formatted = dtf.format(date).replace(/\u200E/g, '');
    const parsed = /(\d+)\/(\d+)\/(\d+),? (\d+):(\d+):(\d+)/.exec(formatted);
    const fMonth = parsed[1];
    const fDay = parsed[2];
    const fYear = parsed[3];
    const fHour = parsed[4];
    const fMinute = parsed[5];
    const fSecond = parsed[6];
    return [fYear, fMonth, fDay, fHour, fMinute, fSecond];
  }

  function partsOffset(dtf, date) {
    const formatted = dtf.formatToParts(date);
    const filled = [];

    for (let i = 0; i < formatted.length; i++) {
      const _formatted$i = formatted[i];
      const { type } = _formatted$i;
      const { value } = _formatted$i;
      const pos = typeToPos[type];

      if (!isUndefined(pos)) {
        filled[pos] = parseInt(value, 10);
      }
    }

    return filled;
  }

  let ianaZoneCache = {};
  /**
   * A zone identified by an IANA identifier, like America/New_York
   * @implements {Zone}
   */

  const IANAZone = /* #__PURE__ */(function (_Zone) {
    _inheritsLoose(IANAZone, _Zone);

    /**
     * @param {string} name - Zone name
     * @return {IANAZone}
     */
    IANAZone.create = function create(name) {
      if (!ianaZoneCache[name]) {
        ianaZoneCache[name] = new IANAZone(name);
      }

      return ianaZoneCache[name];
    }
    /**
     * Reset local caches. Should only be necessary in testing scenarios.
     * @return {void}
     */
    ;

    IANAZone.resetCache = function resetCache() {
      ianaZoneCache = {};
      dtfCache = {};
    }
    /**
     * Returns whether the provided string is a valid specifier. This only checks the string's format, not that the specifier identifies a known zone; see isValidZone for that.
     * @param {string} s - The string to check validity on
     * @example IANAZone.isValidSpecifier("America/New_York") //=> true
     * @example IANAZone.isValidSpecifier("Fantasia/Castle") //=> true
     * @example IANAZone.isValidSpecifier("Sport~~blorp") //=> false
     * @return {boolean}
     */
    ;

    IANAZone.isValidSpecifier = function isValidSpecifier(s) {
      return !!(s && s.match(matchingRegex));
    }
    /**
     * Returns whether the provided string identifies a real zone
     * @param {string} zone - The string to check
     * @example IANAZone.isValidZone("America/New_York") //=> true
     * @example IANAZone.isValidZone("Fantasia/Castle") //=> false
     * @example IANAZone.isValidZone("Sport~~blorp") //=> false
     * @return {boolean}
     */
    ;

    IANAZone.isValidZone = function isValidZone(zone) {
      if (!zone) {
        return false;
      }

      try {
        new Intl.DateTimeFormat('en-US', {
          timeZone: zone,
        }).format();
        return true;
      } catch (e) {
        return false;
      }
    };

    function IANAZone(name) {
      let _this;

      _this = _Zone.call(this) || this;
      /** @private * */

      _this.zoneName = name;
      /** @private * */

      _this.valid = IANAZone.isValidZone(name);
      return _this;
    }
    /** @override * */

    const _proto = IANAZone.prototype;

    /** @override * */
    _proto.offsetName = function offsetName(ts, _ref) {
      const { format } = _ref;
      const { locale } = _ref;
      return parseZoneInfo(ts, format, locale, this.name);
    }
    /** @override * */
    ;

    _proto.formatOffset = function formatOffset$1(ts, format) {
      return formatOffset(this.offset(ts), format);
    }
    /** @override * */
    ;

    _proto.offset = function offset(ts) {
      const date = new Date(ts);
      if (isNaN(date)) return NaN;

      const dtf = makeDTF(this.name);
      const _ref2 = dtf.formatToParts ? partsOffset(dtf, date) : hackyOffset(dtf, date);
      const year = _ref2[0];
      const month = _ref2[1];
      const day = _ref2[2];
      const hour = _ref2[3];
      const minute = _ref2[4];
      const second = _ref2[5]; // because we're using hour12 and https://bugs.chromium.org/p/chromium/issues/detail?id=1025564&can=2&q=%2224%3A00%22%20datetimeformat

      const adjustedHour = hour === 24 ? 0 : hour;
      const asUTC = objToLocalTS({
        year,
        month,
        day,
        hour: adjustedHour,
        minute,
        second,
        millisecond: 0,
      });
      let asTS = +date;
      const over = asTS % 1000;
      asTS -= over >= 0 ? over : 1000 + over;
      return (asUTC - asTS) / (60 * 1000);
    }
    /** @override * */
    ;

    _proto.equals = function equals(otherZone) {
      return otherZone.type === 'iana' && otherZone.name === this.name;
    }
    /** @override * */
    ;

    _createClass(IANAZone, [{
      key: 'type',
      get: function get() {
        return 'iana';
      },
      /** @override * */

    }, {
      key: 'name',
      get: function get() {
        return this.zoneName;
      },
      /** @override * */

    }, {
      key: 'isUniversal',
      get: function get() {
        return false;
      },
    }, {
      key: 'isValid',
      get: function get() {
        return this.valid;
      },
    }]);

    return IANAZone;
  }(Zone));

  let singleton = null;
  /**
   * A zone with a fixed offset (meaning no DST)
   * @implements {Zone}
   */

  const FixedOffsetZone = /* #__PURE__ */(function (_Zone) {
    _inheritsLoose(FixedOffsetZone, _Zone);

    /**
     * Get an instance with a specified offset
     * @param {number} offset - The offset in minutes
     * @return {FixedOffsetZone}
     */
    FixedOffsetZone.instance = function instance(offset) {
      return offset === 0 ? FixedOffsetZone.utcInstance : new FixedOffsetZone(offset);
    }
    /**
     * Get an instance of FixedOffsetZone from a UTC offset string, like "UTC+6"
     * @param {string} s - The offset string to parse
     * @example FixedOffsetZone.parseSpecifier("UTC+6")
     * @example FixedOffsetZone.parseSpecifier("UTC+06")
     * @example FixedOffsetZone.parseSpecifier("UTC-6:00")
     * @return {FixedOffsetZone}
     */
    ;

    FixedOffsetZone.parseSpecifier = function parseSpecifier(s) {
      if (s) {
        const r = s.match(/^utc(?:([+-]\d{1,2})(?::(\d{2}))?)?$/i);

        if (r) {
          return new FixedOffsetZone(signedOffset(r[1], r[2]));
        }
      }

      return null;
    };

    function FixedOffsetZone(offset) {
      let _this;

      _this = _Zone.call(this) || this;
      /** @private * */

      _this.fixed = offset;
      return _this;
    }
    /** @override * */

    const _proto = FixedOffsetZone.prototype;

    /** @override * */
    _proto.offsetName = function offsetName() {
      return this.name;
    }
    /** @override * */
    ;

    _proto.formatOffset = function formatOffset$1(ts, format) {
      return formatOffset(this.fixed, format);
    }
    /** @override * */
    ;

    /** @override * */
    _proto.offset = function offset() {
      return this.fixed;
    }
    /** @override * */
    ;

    _proto.equals = function equals(otherZone) {
      return otherZone.type === 'fixed' && otherZone.fixed === this.fixed;
    }
    /** @override * */
    ;

    _createClass(FixedOffsetZone, [{
      key: 'type',
      get: function get() {
        return 'fixed';
      },
      /** @override * */

    }, {
      key: 'name',
      get: function get() {
        return this.fixed === 0 ? 'UTC' : `UTC${formatOffset(this.fixed, 'narrow')}`;
      },
    }, {
      key: 'isUniversal',
      get: function get() {
        return true;
      },
    }, {
      key: 'isValid',
      get: function get() {
        return true;
      },
    }], [{
      key: 'utcInstance',
      get:
      /**
       * Get a singleton instance of UTC
       * @return {FixedOffsetZone}
       */
      function get() {
        if (singleton === null) {
          singleton = new FixedOffsetZone(0);
        }

        return singleton;
      },
    }]);

    return FixedOffsetZone;
  }(Zone));

  /**
   * A zone that failed to parse. You should never need to instantiate this.
   * @implements {Zone}
   */

  const InvalidZone = /* #__PURE__ */(function (_Zone) {
    _inheritsLoose(InvalidZone, _Zone);

    function InvalidZone(zoneName) {
      let _this;

      _this = _Zone.call(this) || this;
      /**  @private */

      _this.zoneName = zoneName;
      return _this;
    }
    /** @override * */

    const _proto = InvalidZone.prototype;

    /** @override * */
    _proto.offsetName = function offsetName() {
      return null;
    }
    /** @override * */
    ;

    _proto.formatOffset = function formatOffset() {
      return '';
    }
    /** @override * */
    ;

    _proto.offset = function offset() {
      return NaN;
    }
    /** @override * */
    ;

    _proto.equals = function equals() {
      return false;
    }
    /** @override * */
    ;

    _createClass(InvalidZone, [{
      key: 'type',
      get: function get() {
        return 'invalid';
      },
      /** @override * */

    }, {
      key: 'name',
      get: function get() {
        return this.zoneName;
      },
      /** @override * */

    }, {
      key: 'isUniversal',
      get: function get() {
        return false;
      },
    }, {
      key: 'isValid',
      get: function get() {
        return false;
      },
    }]);

    return InvalidZone;
  }(Zone));

  /**
   * @private
   */
  function normalizeZone(input, defaultZone) {

    if (isUndefined(input) || input === null) {
      return defaultZone;
    } if (input instanceof Zone) {
      return input;
    } if (isString(input)) {
      let lowered = input.toLowerCase();
      if (lowered === 'local' || lowered === 'system') return defaultZone; if (lowered === 'utc' || lowered === 'gmt') return FixedOffsetZone.utcInstance; if (IANAZone.isValidSpecifier(lowered)) return IANAZone.create(input); return FixedOffsetZone.parseSpecifier(lowered) || new InvalidZone(input);
    } if (isNumber(input)) {
      return FixedOffsetZone.instance(input);
    } if (typeof input === 'object' && input.offset && typeof input.offset === 'number') {
      // This is dumb, but the instanceof check above doesn't seem to really work
      // so we're duck checking it
      return input;
    }
    return new InvalidZone(input);
    
  }

  let now = function now() {
    return Date.now();
  };
  let defaultZone = 'system';
  let defaultLocale = null;
  let defaultNumberingSystem = null;
  let defaultOutputCalendar = null;
  let throwOnInvalid;
  /**
   * Settings contains static getters and setters that control Luxon's overall behavior. Luxon is a simple library with few options, but the ones it does have live here.
   */

  const Settings = /* #__PURE__ */(function () {
    function Settings() {}

    /**
     * Reset Luxon's global caches. Should only be necessary in testing scenarios.
     * @return {void}
     */
    Settings.resetCaches = function resetCaches() {
      Locale.resetCache();
      IANAZone.resetCache();
    };

    _createClass(Settings, null, [{
      key: 'now',
      get:
      /**
       * Get the callback for returning the current timestamp.
       * @type {function}
       */
      function get() {
        return now;
      }, /**
       * Set the callback for returning the current timestamp.
       * The function should return a number, which will be interpreted as an Epoch millisecond count
       * @type {function}
       * @example Settings.now = () => Date.now() + 3000 // pretend it is 3 seconds in the future
       * @example Settings.now = () => 0 // always pretend it's Jan 1, 1970 at midnight in UTC time
       */

      set: function set(n) {
        now = n;
      },
      /**
       * Set the default time zone to create DateTimes in. Does not affect existing instances.
       * Use the value "system" to reset this value to the system's time zone.
       * @type {string}
       */

    }, {
      key: 'defaultZone',
      get:
      /**
       * Get the default time zone object currently used to create DateTimes. Does not affect existing instances.
       * The default value is the system's time zone (the one set on the machine that runs this code).
       * @type {Zone}
       */
      function get() {
        return normalizeZone(defaultZone, SystemZone.instance);
      }, /**
       * Get the default locale to create DateTimes with. Does not affect existing instances.
       * @type {string}
       */

      set: function set(zone) {
        defaultZone = zone;
      },
    }, {
      key: 'defaultLocale',
      get: function get() {
        return defaultLocale;
      }, /**
       * Set the default locale to create DateTimes with. Does not affect existing instances.
       * @type {string}
       */

      set: function set(locale) {
        defaultLocale = locale;
      },
      /**
       * Get the default numbering system to create DateTimes with. Does not affect existing instances.
       * @type {string}
       */

    }, {
      key: 'defaultNumberingSystem',
      get: function get() {
        return defaultNumberingSystem;
      }, /**
       * Set the default numbering system to create DateTimes with. Does not affect existing instances.
       * @type {string}
       */

      set: function set(numberingSystem) {
        defaultNumberingSystem = numberingSystem;
      },
      /**
       * Get the default output calendar to create DateTimes with. Does not affect existing instances.
       * @type {string}
       */

    }, {
      key: 'defaultOutputCalendar',
      get: function get() {
        return defaultOutputCalendar;
      }, /**
       * Set the default output calendar to create DateTimes with. Does not affect existing instances.
       * @type {string}
       */

      set: function set(outputCalendar) {
        defaultOutputCalendar = outputCalendar;
      },
      /**
       * Get whether Luxon will throw when it encounters invalid DateTimes, Durations, or Intervals
       * @type {boolean}
       */

    }, {
      key: 'throwOnInvalid',
      get: function get() {
        return throwOnInvalid;
      }, /**
       * Set whether Luxon will throw when it encounters invalid DateTimes, Durations, or Intervals
       * @type {boolean}
       */

      set: function set(t) {
        throwOnInvalid = t;
      },
    }]);

    return Settings;
  }());

  const _excluded = ['base'];
  let intlDTCache = {};

  function getCachedDTF(locString, opts) {
    if (opts === void 0) {
      opts = {};
    }

    const key = JSON.stringify([locString, opts]);
    let dtf = intlDTCache[key];

    if (!dtf) {
      dtf = new Intl.DateTimeFormat(locString, opts);
      intlDTCache[key] = dtf;
    }

    return dtf;
  }

  let intlNumCache = {};

  function getCachedINF(locString, opts) {
    if (opts === void 0) {
      opts = {};
    }

    const key = JSON.stringify([locString, opts]);
    let inf = intlNumCache[key];

    if (!inf) {
      inf = new Intl.NumberFormat(locString, opts);
      intlNumCache[key] = inf;
    }

    return inf;
  }

  let intlRelCache = {};

  function getCachedRTF(locString, opts) {
    if (opts === void 0) {
      opts = {};
    }

    const _opts = opts;
    _opts.base;
    const cacheKeyOpts = _objectWithoutPropertiesLoose(_opts, _excluded); // exclude `base` from the options

    const key = JSON.stringify([locString, cacheKeyOpts]);
    let inf = intlRelCache[key];

    if (!inf) {
      inf = new Intl.RelativeTimeFormat(locString, opts);
      intlRelCache[key] = inf;
    }

    return inf;
  }

  let sysLocaleCache = null;

  function systemLocale() {
    if (sysLocaleCache) {
      return sysLocaleCache;
    }
    sysLocaleCache = new Intl.DateTimeFormat().resolvedOptions().locale;
    return sysLocaleCache;
  }

  function parseLocaleString(localeStr) {
    // I really want to avoid writing a BCP 47 parser
    // see, e.g. https://github.com/wooorm/bcp-47
    // Instead, we'll do this:
    // a) if the string has no -u extensions, just leave it alone
    // b) if it does, use Intl to resolve everything
    // c) if Intl fails, try again without the -u
    const uIndex = localeStr.indexOf('-u-');

    if (uIndex === -1) {
      return [localeStr];
    }
    let options;
    const smaller = localeStr.substring(0, uIndex);

    try {
      options = getCachedDTF(localeStr).resolvedOptions();
    } catch (e) {
      options = getCachedDTF(smaller).resolvedOptions();
    }

    const _options = options;
    const { numberingSystem } = _options;
    const { calendar } = _options; // return the smaller one so that we can append the calendar and numbering overrides to it

    return [smaller, numberingSystem, calendar];
  }

  function intlConfigString(localeStr, numberingSystem, outputCalendar) {
    if (outputCalendar || numberingSystem) {
      localeStr += '-u';

      if (outputCalendar) {
        localeStr += `-ca-${outputCalendar}`;
      }

      if (numberingSystem) {
        localeStr += `-nu-${numberingSystem}`;
      }

      return localeStr;
    }
    return localeStr;
  }

  function mapMonths(f) {
    const ms = [];

    for (let i = 1; i <= 12; i++) {
      const dt = DateTime.utc(2016, i, 1);
      ms.push(f(dt));
    }

    return ms;
  }

  function mapWeekdays(f) {
    const ms = [];

    for (let i = 1; i <= 7; i++) {
      const dt = DateTime.utc(2016, 11, 13 + i);
      ms.push(f(dt));
    }

    return ms;
  }

  function listStuff(loc, length, defaultOK, englishFn, intlFn) {
    const mode = loc.listingMode(defaultOK);

    if (mode === 'error') {
      return null;
    } if (mode === 'en') {
      return englishFn(length);
    }
    return intlFn(length);
  }

  function supportsFastNumbers(loc) {
    if (loc.numberingSystem && loc.numberingSystem !== 'latn') {
      return false;
    }
    return loc.numberingSystem === 'latn' || !loc.locale || loc.locale.startsWith('en') || new Intl.DateTimeFormat(loc.intl).resolvedOptions().numberingSystem === 'latn';
  }
  /**
   * @private
   */

  const PolyNumberFormatter = /* #__PURE__ */(function () {
    function PolyNumberFormatter(intl, forceSimple, opts) {
      this.padTo = opts.padTo || 0;
      this.floor = opts.floor || false;

      if (!forceSimple) {
        const intlOpts = {
          useGrouping: false,
        };
        if (opts.padTo > 0) intlOpts.minimumIntegerDigits = opts.padTo;
        this.inf = getCachedINF(intl, intlOpts);
      }
    }

    const _proto = PolyNumberFormatter.prototype;

    _proto.format = function format(i) {
      if (this.inf) {
        const fixed = this.floor ? Math.floor(i) : i;
        return this.inf.format(fixed);
      }
      // to match the browser's numberformatter defaults
      const _fixed = this.floor ? Math.floor(i) : roundTo(i, 3);

      return padStart(_fixed, this.padTo);
    };

    return PolyNumberFormatter;
  }());
  /**
   * @private
   */

  const PolyDateFormatter = /* #__PURE__ */(function () {
    function PolyDateFormatter(dt, intl, opts) {
      this.opts = opts;
      let z;

      if (dt.zone.isUniversal) {
        // UTC-8 or Etc/UTC-8 are not part of tzdata, only Etc/GMT+8 and the like.
        // That is why fixed-offset TZ is set to that unless it is:
        // 1. Representing offset 0 when UTC is used to maintain previous behavior and does not become GMT.
        // 2. Unsupported by the browser:
        //    - some do not support Etc/
        //    - < Etc/GMT-14, > Etc/GMT+12, and 30-minute or 45-minute offsets are not part of tzdata
        const gmtOffset = -1 * (dt.offset / 60);
        const offsetZ = gmtOffset >= 0 ? `Etc/GMT+${gmtOffset}` : `Etc/GMT${gmtOffset}`;

        if (dt.offset !== 0 && IANAZone.create(offsetZ).valid) {
          z = offsetZ;
          this.dt = dt;
        } else {
          // Not all fixed-offset zones like Etc/+4:30 are present in tzdata.
          // So we have to make do. Two cases:
          // 1. The format options tell us to show the zone. We can't do that, so the best
          // we can do is format the date in UTC.
          // 2. The format options don't tell us to show the zone. Then we can adjust them
          // the time and tell the formatter to show it to us in UTC, so that the time is right
          // and the bad zone doesn't show up.
          z = 'UTC';

          if (opts.timeZoneName) {
            this.dt = dt;
          } else {
            this.dt = dt.offset === 0 ? dt : DateTime.fromMillis(dt.ts + dt.offset * 60 * 1000);
          }
        }
      } else if (dt.zone.type === 'system') {
        this.dt = dt;
      } else {
        this.dt = dt;
        z = dt.zone.name;
      }

      const intlOpts = { ...this.opts };

      if (z) {
        intlOpts.timeZone = z;
      }

      this.dtf = getCachedDTF(intl, intlOpts);
    }

    const _proto2 = PolyDateFormatter.prototype;

    _proto2.format = function format() {
      return this.dtf.format(this.dt.toJSDate());
    };

    _proto2.formatToParts = function formatToParts() {
      return this.dtf.formatToParts(this.dt.toJSDate());
    };

    _proto2.resolvedOptions = function resolvedOptions() {
      return this.dtf.resolvedOptions();
    };

    return PolyDateFormatter;
  }());
  /**
   * @private
   */

  const PolyRelFormatter = /* #__PURE__ */(function () {
    function PolyRelFormatter(intl, isEnglish, opts) {
      this.opts = { style: 'long', ...opts };

      if (!isEnglish && hasRelative()) {
        this.rtf = getCachedRTF(intl, opts);
      }
    }

    const _proto3 = PolyRelFormatter.prototype;

    _proto3.format = function format(count, unit) {
      if (this.rtf) {
        return this.rtf.format(count, unit);
      }
      return formatRelativeTime(unit, count, this.opts.numeric, this.opts.style !== 'long');
    };

    _proto3.formatToParts = function formatToParts(count, unit) {
      if (this.rtf) {
        return this.rtf.formatToParts(count, unit);
      }
      return [];
    };

    return PolyRelFormatter;
  }());
  /**
   * @private
   */

  var Locale = /* #__PURE__ */(function () {
    Locale.fromOpts = function fromOpts(opts) {
      return Locale.create(opts.locale, opts.numberingSystem, opts.outputCalendar, opts.defaultToEN);
    };

    Locale.create = function create(locale, numberingSystem, outputCalendar, defaultToEN) {
      if (defaultToEN === void 0) {
        defaultToEN = false;
      }

      const specifiedLocale = locale || Settings.defaultLocale; // the system locale is useful for human readable strings but annoying for parsing/formatting known formats

      const localeR = specifiedLocale || (defaultToEN ? 'en-US' : systemLocale());
      const numberingSystemR = numberingSystem || Settings.defaultNumberingSystem;
      const outputCalendarR = outputCalendar || Settings.defaultOutputCalendar;
      return new Locale(localeR, numberingSystemR, outputCalendarR, specifiedLocale);
    };

    Locale.resetCache = function resetCache() {
      sysLocaleCache = null;
      intlDTCache = {};
      intlNumCache = {};
      intlRelCache = {};
    };

    Locale.fromObject = function fromObject(_temp) {
      const _ref = _temp === void 0 ? {} : _temp;
      const { locale } = _ref;
      const { numberingSystem } = _ref;
      const { outputCalendar } = _ref;

      return Locale.create(locale, numberingSystem, outputCalendar);
    };

    function Locale(locale, numbering, outputCalendar, specifiedLocale) {
      const _parseLocaleString = parseLocaleString(locale);
      const parsedLocale = _parseLocaleString[0];
      const parsedNumberingSystem = _parseLocaleString[1];
      const parsedOutputCalendar = _parseLocaleString[2];

      this.locale = parsedLocale;
      this.numberingSystem = numbering || parsedNumberingSystem || null;
      this.outputCalendar = outputCalendar || parsedOutputCalendar || null;
      this.intl = intlConfigString(this.locale, this.numberingSystem, this.outputCalendar);
      this.weekdaysCache = {
        format: {},
        standalone: {},
      };
      this.monthsCache = {
        format: {},
        standalone: {},
      };
      this.meridiemCache = null;
      this.eraCache = {};
      this.specifiedLocale = specifiedLocale;
      this.fastNumbersCached = null;
    }

    const _proto4 = Locale.prototype;

    _proto4.listingMode = function listingMode(defaultOK) {
      const isActuallyEn = this.isEnglish();
      const hasNoWeirdness = (this.numberingSystem === null || this.numberingSystem === 'latn') && (this.outputCalendar === null || this.outputCalendar === 'gregory');
      return isActuallyEn && hasNoWeirdness ? 'en' : 'intl';
    };

    _proto4.clone = function clone(alts) {
      if (!alts || Object.getOwnPropertyNames(alts).length === 0) {
        return this;
      }
      return Locale.create(alts.locale || this.specifiedLocale, alts.numberingSystem || this.numberingSystem, alts.outputCalendar || this.outputCalendar, alts.defaultToEN || false);
    };

    _proto4.redefaultToEN = function redefaultToEN(alts) {
      if (alts === void 0) {
        alts = {};
      }

      return this.clone({ ...alts, defaultToEN: true });
    };

    _proto4.redefaultToSystem = function redefaultToSystem(alts) {
      if (alts === void 0) {
        alts = {};
      }

      return this.clone({ ...alts, defaultToEN: false });
    };

    _proto4.months = function months$1(length, format, defaultOK) {
      const _this = this;

      if (format === void 0) {
        format = false;
      }

      if (defaultOK === void 0) {
        defaultOK = true;
      }

      return listStuff(this, length, defaultOK, months, () => {
        const intl = format ? {
          month: length,
          day: 'numeric',
        } : {
          month: length,
        };
        const formatStr = format ? 'format' : 'standalone';

        if (!_this.monthsCache[formatStr][length]) {
          _this.monthsCache[formatStr][length] = mapMonths((dt) => _this.extract(dt, intl, 'month'));
        }

        return _this.monthsCache[formatStr][length];
      });
    };

    _proto4.weekdays = function weekdays$1(length, format, defaultOK) {
      const _this2 = this;

      if (format === void 0) {
        format = false;
      }

      if (defaultOK === void 0) {
        defaultOK = true;
      }

      return listStuff(this, length, defaultOK, weekdays, () => {
        const intl = format ? {
          weekday: length,
          year: 'numeric',
          month: 'long',
          day: 'numeric',
        } : {
          weekday: length,
        };
        const formatStr = format ? 'format' : 'standalone';

        if (!_this2.weekdaysCache[formatStr][length]) {
          _this2.weekdaysCache[formatStr][length] = mapWeekdays((dt) => _this2.extract(dt, intl, 'weekday'));
        }

        return _this2.weekdaysCache[formatStr][length];
      });
    };

    _proto4.meridiems = function meridiems$1(defaultOK) {
      const _this3 = this;

      if (defaultOK === void 0) {
        defaultOK = true;
      }

      return listStuff(this, undefined, defaultOK, () => meridiems, () => {
        // In theory there could be aribitrary day periods. We're gonna assume there are exactly two
        // for AM and PM. This is probably wrong, but it's makes parsing way easier.
        if (!_this3.meridiemCache) {
          const intl = {
            hour: 'numeric',
            hourCycle: 'h12',
          };
          _this3.meridiemCache = [DateTime.utc(2016, 11, 13, 9), DateTime.utc(2016, 11, 13, 19)].map((dt) => _this3.extract(dt, intl, 'dayperiod'));
        }

        return _this3.meridiemCache;
      });
    };

    _proto4.eras = function eras$1(length, defaultOK) {
      const _this4 = this;

      if (defaultOK === void 0) {
        defaultOK = true;
      }

      return listStuff(this, length, defaultOK, eras, () => {
        const intl = {
          era: length,
        }; // This is problematic. Different calendars are going to define eras totally differently. What I need is the minimum set of dates
        // to definitely enumerate them.

        if (!_this4.eraCache[length]) {
          _this4.eraCache[length] = [DateTime.utc(-40, 1, 1), DateTime.utc(2017, 1, 1)].map((dt) => _this4.extract(dt, intl, 'era'));
        }

        return _this4.eraCache[length];
      });
    };

    _proto4.extract = function extract(dt, intlOpts, field) {
      const df = this.dtFormatter(dt, intlOpts);
      const results = df.formatToParts();
      const matching = results.find((m) => m.type.toLowerCase() === field);
      return matching ? matching.value : null;
    };

    _proto4.numberFormatter = function numberFormatter(opts) {
      if (opts === void 0) {
        opts = {};
      }

      // this forcesimple option is never used (the only caller short-circuits on it, but it seems safer to leave)
      // (in contrast, the rest of the condition is used heavily)
      return new PolyNumberFormatter(this.intl, opts.forceSimple || this.fastNumbers, opts);
    };

    _proto4.dtFormatter = function dtFormatter(dt, intlOpts) {
      if (intlOpts === void 0) {
        intlOpts = {};
      }

      return new PolyDateFormatter(dt, this.intl, intlOpts);
    };

    _proto4.relFormatter = function relFormatter(opts) {
      if (opts === void 0) {
        opts = {};
      }

      return new PolyRelFormatter(this.intl, this.isEnglish(), opts);
    };

    _proto4.isEnglish = function isEnglish() {
      return this.locale === 'en' || this.locale.toLowerCase() === 'en-us' || new Intl.DateTimeFormat(this.intl).resolvedOptions().locale.startsWith('en-us');
    };

    _proto4.equals = function equals(other) {
      return this.locale === other.locale && this.numberingSystem === other.numberingSystem && this.outputCalendar === other.outputCalendar;
    };

    _createClass(Locale, [{
      key: 'fastNumbers',
      get: function get() {
        if (this.fastNumbersCached == null) {
          this.fastNumbersCached = supportsFastNumbers(this);
        }

        return this.fastNumbersCached;
      },
    }]);

    return Locale;
  }());

  /*
   * This file handles parsing for well-specified formats. Here's how it works:
   * Two things go into parsing: a regex to match with and an extractor to take apart the groups in the match.
   * An extractor is just a function that takes a regex match array and returns a { year: ..., month: ... } object
   * parse() does the work of executing the regex and applying the extractor. It takes multiple regex/extractor pairs to try in sequence.
   * Extractors can take a "cursor" representing the offset in the match to look at. This makes it easy to combine extractors.
   * combineExtractors() does the work of combining them, keeping track of the cursor through multiple extractions.
   * Some extractions are super dumb and simpleParse and fromStrings help DRY them.
   */

  function combineRegexes() {
    for (var _len = arguments.length, regexes = new Array(_len), _key = 0; _key < _len; _key++) {
      regexes[_key] = arguments[_key];
    }

    const full = regexes.reduce((f, r) => f + r.source, '');
    return RegExp(`^${full}$`);
  }

  function combineExtractors() {
    for (var _len2 = arguments.length, extractors = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
      extractors[_key2] = arguments[_key2];
    }

    return function (m) {
      return extractors.reduce((_ref, ex) => {
        const mergedVals = _ref[0];
        const mergedZone = _ref[1];
        const cursor = _ref[2];

        const _ex = ex(m, cursor);
        const val = _ex[0];
        const zone = _ex[1];
        const next = _ex[2];

        return [{ ...mergedVals, ...val }, mergedZone || zone, next];
      }, [{}, null, 1]).slice(0, 2);
    };
  }

  function parse(s) {
    if (s == null) {
      return [null, null];
    }

    for (var _len3 = arguments.length, patterns = new Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) {
      patterns[_key3 - 1] = arguments[_key3];
    }

    for (let _i = 0, _patterns = patterns; _i < _patterns.length; _i++) {
      const _patterns$_i = _patterns[_i];
      const regex = _patterns$_i[0];
      const extractor = _patterns$_i[1];
      const m = regex.exec(s);

      if (m) {
        return extractor(m);
      }
    }

    return [null, null];
  }

  function simpleParse() {
    for (var _len4 = arguments.length, keys = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
      keys[_key4] = arguments[_key4];
    }

    return function (match, cursor) {
      const ret = {};
      let i;

      for (i = 0; i < keys.length; i++) {
        ret[keys[i]] = parseInteger(match[cursor + i]);
      }

      return [ret, null, cursor + i];
    };
  } // ISO and SQL parsing

  const offsetRegex = /(?:(Z)|([+-]\d\d)(?::?(\d\d))?)/;
  const isoTimeBaseRegex = /(\d\d)(?::?(\d\d)(?::?(\d\d)(?:[.,](\d{1,30}))?)?)?/;
  const isoTimeRegex = RegExp(`${isoTimeBaseRegex.source}${offsetRegex.source}?`);
  const isoTimeExtensionRegex = RegExp(`(?:T${isoTimeRegex.source})?`);
  const isoYmdRegex = /([+-]\d{6}|\d{4})(?:-?(\d\d)(?:-?(\d\d))?)?/;
  const isoWeekRegex = /(\d{4})-?W(\d\d)(?:-?(\d))?/;
  const isoOrdinalRegex = /(\d{4})-?(\d{3})/;
  const extractISOWeekData = simpleParse('weekYear', 'weekNumber', 'weekDay');
  const extractISOOrdinalData = simpleParse('year', 'ordinal');
  const sqlYmdRegex = /(\d{4})-(\d\d)-(\d\d)/;
  // dumbed-down version of the ISO one
  const sqlTimeRegex = RegExp(`${isoTimeBaseRegex.source} ?(?:${offsetRegex.source}|(${ianaRegex.source}))?`);
  const sqlTimeExtensionRegex = RegExp(`(?: ${sqlTimeRegex.source})?`);

  function int(match, pos, fallback) {
    const m = match[pos];
    return isUndefined(m) ? fallback : parseInteger(m);
  }

  function extractISOYmd(match, cursor) {
    const item = {
      year: int(match, cursor),
      month: int(match, cursor + 1, 1),
      day: int(match, cursor + 2, 1),
    };
    return [item, null, cursor + 3];
  }

  function extractISOTime(match, cursor) {
    const item = {
      hours: int(match, cursor, 0),
      minutes: int(match, cursor + 1, 0),
      seconds: int(match, cursor + 2, 0),
      milliseconds: parseMillis(match[cursor + 3]),
    };
    return [item, null, cursor + 4];
  }

  function extractISOOffset(match, cursor) {
    const local = !match[cursor] && !match[cursor + 1];
    const fullOffset = signedOffset(match[cursor + 1], match[cursor + 2]);
    const zone = local ? null : FixedOffsetZone.instance(fullOffset);
    return [{}, zone, cursor + 3];
  }

  function extractIANAZone(match, cursor) {
    const zone = match[cursor] ? IANAZone.create(match[cursor]) : null;
    return [{}, zone, cursor + 1];
  } // ISO time parsing

  const isoTimeOnly = RegExp(`^T?${isoTimeBaseRegex.source}$`); // ISO duration parsing

  const isoDuration = /^-?P(?:(?:(-?\d{1,9}(?:\.\d{1,9})?)Y)?(?:(-?\d{1,9}(?:\.\d{1,9})?)M)?(?:(-?\d{1,9}(?:\.\d{1,9})?)W)?(?:(-?\d{1,9}(?:\.\d{1,9})?)D)?(?:T(?:(-?\d{1,9}(?:\.\d{1,9})?)H)?(?:(-?\d{1,9}(?:\.\d{1,9})?)M)?(?:(-?\d{1,20})(?:[.,](-?\d{1,9}))?S)?)?)$/;

  function extractISODuration(match) {
    const s = match[0];
    const yearStr = match[1];
    const monthStr = match[2];
    const weekStr = match[3];
    const dayStr = match[4];
    const hourStr = match[5];
    const minuteStr = match[6];
    const secondStr = match[7];
    const millisecondsStr = match[8];
    const hasNegativePrefix = s[0] === '-';
    const negativeSeconds = secondStr && secondStr[0] === '-';

    const maybeNegate = function maybeNegate(num, force) {
      if (force === void 0) {
        force = false;
      }

      return num !== undefined && (force || num && hasNegativePrefix) ? -num : num;
    };

    return [{
      years: maybeNegate(parseFloating(yearStr)),
      months: maybeNegate(parseFloating(monthStr)),
      weeks: maybeNegate(parseFloating(weekStr)),
      days: maybeNegate(parseFloating(dayStr)),
      hours: maybeNegate(parseFloating(hourStr)),
      minutes: maybeNegate(parseFloating(minuteStr)),
      seconds: maybeNegate(parseFloating(secondStr), secondStr === '-0'),
      milliseconds: maybeNegate(parseMillis(millisecondsStr), negativeSeconds),
    }];
  } // These are a little braindead. EDT *should* tell us that we're in, say, America/New_York
  // and not just that we're in -240 *right now*. But since I don't think these are used that often
  // I'm just going to ignore that

  const obsOffsets = {
    GMT: 0,
    EDT: -4 * 60,
    EST: -5 * 60,
    CDT: -5 * 60,
    CST: -6 * 60,
    MDT: -6 * 60,
    MST: -7 * 60,
    PDT: -7 * 60,
    PST: -8 * 60,
  };

  function fromStrings(weekdayStr, yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr) {
    const result = {
      year: yearStr.length === 2 ? untruncateYear(parseInteger(yearStr)) : parseInteger(yearStr),
      month: monthsShort.indexOf(monthStr) + 1,
      day: parseInteger(dayStr),
      hour: parseInteger(hourStr),
      minute: parseInteger(minuteStr),
    };
    if (secondStr) result.second = parseInteger(secondStr);

    if (weekdayStr) {
      result.weekday = weekdayStr.length > 3 ? weekdaysLong.indexOf(weekdayStr) + 1 : weekdaysShort.indexOf(weekdayStr) + 1;
    }

    return result;
  } // RFC 2822/5322

  const rfc2822 = /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|(?:([+-]\d\d)(\d\d)))$/;

  function extractRFC2822(match) {
    const weekdayStr = match[1];
    const dayStr = match[2];
    const monthStr = match[3];
    const yearStr = match[4];
    const hourStr = match[5];
    const minuteStr = match[6];
    const secondStr = match[7];
    const obsOffset = match[8];
    const milOffset = match[9];
    const offHourStr = match[10];
    const offMinuteStr = match[11];
    const result = fromStrings(weekdayStr, yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr);
    let offset;

    if (obsOffset) {
      offset = obsOffsets[obsOffset];
    } else if (milOffset) {
      offset = 0;
    } else {
      offset = signedOffset(offHourStr, offMinuteStr);
    }

    return [result, new FixedOffsetZone(offset)];
  }

  function preprocessRFC2822(s) {
    // Remove comments and folding whitespace and replace multiple-spaces with a single space
    return s.replace(/\([^)]*\)|[\n\t]/g, ' ').replace(/(\s\s+)/g, ' ').trim();
  } // http date

  const rfc1123 = /^(Mon|Tue|Wed|Thu|Fri|Sat|Sun), (\d\d) (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec) (\d{4}) (\d\d):(\d\d):(\d\d) GMT$/;
  const rfc850 = /^(Monday|Tuesday|Wedsday|Thursday|Friday|Saturday|Sunday), (\d\d)-(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)-(\d\d) (\d\d):(\d\d):(\d\d) GMT$/;
  const ascii = /^(Mon|Tue|Wed|Thu|Fri|Sat|Sun) (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec) ( \d|\d\d) (\d\d):(\d\d):(\d\d) (\d{4})$/;

  function extractRFC1123Or850(match) {
    const weekdayStr = match[1];
    const dayStr = match[2];
    const monthStr = match[3];
    const yearStr = match[4];
    const hourStr = match[5];
    const minuteStr = match[6];
    const secondStr = match[7];
    const result = fromStrings(weekdayStr, yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr);
    return [result, FixedOffsetZone.utcInstance];
  }

  function extractASCII(match) {
    const weekdayStr = match[1];
    const monthStr = match[2];
    const dayStr = match[3];
    const hourStr = match[4];
    const minuteStr = match[5];
    const secondStr = match[6];
    const yearStr = match[7];
    const result = fromStrings(weekdayStr, yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr);
    return [result, FixedOffsetZone.utcInstance];
  }

  const isoYmdWithTimeExtensionRegex = combineRegexes(isoYmdRegex, isoTimeExtensionRegex);
  const isoWeekWithTimeExtensionRegex = combineRegexes(isoWeekRegex, isoTimeExtensionRegex);
  const isoOrdinalWithTimeExtensionRegex = combineRegexes(isoOrdinalRegex, isoTimeExtensionRegex);
  const isoTimeCombinedRegex = combineRegexes(isoTimeRegex);
  const extractISOYmdTimeAndOffset = combineExtractors(extractISOYmd, extractISOTime, extractISOOffset);
  const extractISOWeekTimeAndOffset = combineExtractors(extractISOWeekData, extractISOTime, extractISOOffset);
  const extractISOOrdinalDateAndTime = combineExtractors(extractISOOrdinalData, extractISOTime, extractISOOffset);
  const extractISOTimeAndOffset = combineExtractors(extractISOTime, extractISOOffset);
  /**
   * @private
   */

  function parseISODate(s) {
    return parse(s, [isoYmdWithTimeExtensionRegex, extractISOYmdTimeAndOffset], [isoWeekWithTimeExtensionRegex, extractISOWeekTimeAndOffset], [isoOrdinalWithTimeExtensionRegex, extractISOOrdinalDateAndTime], [isoTimeCombinedRegex, extractISOTimeAndOffset]);
  }
  function parseRFC2822Date(s) {
    return parse(preprocessRFC2822(s), [rfc2822, extractRFC2822]);
  }
  function parseHTTPDate(s) {
    return parse(s, [rfc1123, extractRFC1123Or850], [rfc850, extractRFC1123Or850], [ascii, extractASCII]);
  }
  function parseISODuration(s) {
    return parse(s, [isoDuration, extractISODuration]);
  }
  const extractISOTimeOnly = combineExtractors(extractISOTime);
  function parseISOTimeOnly(s) {
    return parse(s, [isoTimeOnly, extractISOTimeOnly]);
  }
  const sqlYmdWithTimeExtensionRegex = combineRegexes(sqlYmdRegex, sqlTimeExtensionRegex);
  const sqlTimeCombinedRegex = combineRegexes(sqlTimeRegex);
  const extractISOYmdTimeOffsetAndIANAZone = combineExtractors(extractISOYmd, extractISOTime, extractISOOffset, extractIANAZone);
  const extractISOTimeOffsetAndIANAZone = combineExtractors(extractISOTime, extractISOOffset, extractIANAZone);
  function parseSQL(s) {
    return parse(s, [sqlYmdWithTimeExtensionRegex, extractISOYmdTimeOffsetAndIANAZone], [sqlTimeCombinedRegex, extractISOTimeOffsetAndIANAZone]);
  }

  const INVALID$2 = 'Invalid Duration'; // unit conversion constants

  const lowOrderMatrix = {
    weeks: {
      days: 7,
      hours: 7 * 24,
      minutes: 7 * 24 * 60,
      seconds: 7 * 24 * 60 * 60,
      milliseconds: 7 * 24 * 60 * 60 * 1000,
    },
    days: {
      hours: 24,
      minutes: 24 * 60,
      seconds: 24 * 60 * 60,
      milliseconds: 24 * 60 * 60 * 1000,
    },
    hours: {
      minutes: 60,
      seconds: 60 * 60,
      milliseconds: 60 * 60 * 1000,
    },
    minutes: {
      seconds: 60,
      milliseconds: 60 * 1000,
    },
    seconds: {
      milliseconds: 1000,
    },
  };
  const casualMatrix = {
    years: {
      quarters: 4,
      months: 12,
      weeks: 52,
      days: 365,
      hours: 365 * 24,
      minutes: 365 * 24 * 60,
      seconds: 365 * 24 * 60 * 60,
      milliseconds: 365 * 24 * 60 * 60 * 1000,
    },
    quarters: {
      months: 3,
      weeks: 13,
      days: 91,
      hours: 91 * 24,
      minutes: 91 * 24 * 60,
      seconds: 91 * 24 * 60 * 60,
      milliseconds: 91 * 24 * 60 * 60 * 1000,
    },
    months: {
      weeks: 4,
      days: 30,
      hours: 30 * 24,
      minutes: 30 * 24 * 60,
      seconds: 30 * 24 * 60 * 60,
      milliseconds: 30 * 24 * 60 * 60 * 1000,
    },
    ...lowOrderMatrix,
  };
  const daysInYearAccurate = 146097.0 / 400;
  const daysInMonthAccurate = 146097.0 / 4800;
  const accurateMatrix = {
    years: {
      quarters: 4,
      months: 12,
      weeks: daysInYearAccurate / 7,
      days: daysInYearAccurate,
      hours: daysInYearAccurate * 24,
      minutes: daysInYearAccurate * 24 * 60,
      seconds: daysInYearAccurate * 24 * 60 * 60,
      milliseconds: daysInYearAccurate * 24 * 60 * 60 * 1000,
    },
    quarters: {
      months: 3,
      weeks: daysInYearAccurate / 28,
      days: daysInYearAccurate / 4,
      hours: daysInYearAccurate * 24 / 4,
      minutes: daysInYearAccurate * 24 * 60 / 4,
      seconds: daysInYearAccurate * 24 * 60 * 60 / 4,
      milliseconds: daysInYearAccurate * 24 * 60 * 60 * 1000 / 4,
    },
    months: {
      weeks: daysInMonthAccurate / 7,
      days: daysInMonthAccurate,
      hours: daysInMonthAccurate * 24,
      minutes: daysInMonthAccurate * 24 * 60,
      seconds: daysInMonthAccurate * 24 * 60 * 60,
      milliseconds: daysInMonthAccurate * 24 * 60 * 60 * 1000,
    },
    ...lowOrderMatrix,
  }; // units ordered by size

  const orderedUnits$1 = ['years', 'quarters', 'months', 'weeks', 'days', 'hours', 'minutes', 'seconds', 'milliseconds'];
  const reverseUnits = orderedUnits$1.slice(0).reverse(); // clone really means "create another instance just like this one, but with these changes"

  function clone$1(dur, alts, clear) {
    if (clear === void 0) {
      clear = false;
    }

    // deep merge for vals
    const conf = {
      values: clear ? alts.values : ({ ...dur.values, ...alts.values || {} }),
      loc: dur.loc.clone(alts.loc),
      conversionAccuracy: alts.conversionAccuracy || dur.conversionAccuracy,
    };
    return new Duration(conf);
  }

  function antiTrunc(n) {
    return n < 0 ? Math.floor(n) : Math.ceil(n);
  } // NB: mutates parameters

  function convert(matrix, fromMap, fromUnit, toMap, toUnit) {
    const conv = matrix[toUnit][fromUnit];
    const raw = fromMap[fromUnit] / conv;
    const sameSign = Math.sign(raw) === Math.sign(toMap[toUnit]);
    // ok, so this is wild, but see the matrix in the tests
    const added = !sameSign && toMap[toUnit] !== 0 && Math.abs(raw) <= 1 ? antiTrunc(raw) : Math.trunc(raw);
    toMap[toUnit] += added;
    fromMap[fromUnit] -= added * conv;
  } // NB: mutates parameters

  function normalizeValues(matrix, vals) {
    reverseUnits.reduce((previous, current) => {
      if (!isUndefined(vals[current])) {
        if (previous) {
          convert(matrix, vals, previous, vals, current);
        }

        return current;
      }
      return previous;
    }, null);
  }
  /**
   * A Duration object represents a period of time, like "2 months" or "1 day, 1 hour". Conceptually, it's just a map of units to their quantities, accompanied by some additional configuration and methods for creating, parsing, interrogating, transforming, and formatting them. They can be used on their own or in conjunction with other Luxon types; for example, you can use {@link DateTime#plus} to add a Duration object to a DateTime, producing another DateTime.
   *
   * Here is a brief overview of commonly used methods and getters in Duration:
   *
   * * **Creation** To create a Duration, use {@link Duration#fromMillis}, {@link Duration#fromObject}, or {@link Duration#fromISO}.
   * * **Unit values** See the {@link Duration#years}, {@link Duration.months}, {@link Duration#weeks}, {@link Duration#days}, {@link Duration#hours}, {@link Duration#minutes}, {@link Duration#seconds}, {@link Duration#milliseconds} accessors.
   * * **Configuration** See  {@link Duration#locale} and {@link Duration#numberingSystem} accessors.
   * * **Transformation** To create new Durations out of old ones use {@link Duration#plus}, {@link Duration#minus}, {@link Duration#normalize}, {@link Duration#set}, {@link Duration#reconfigure}, {@link Duration#shiftTo}, and {@link Duration#negate}.
   * * **Output** To convert the Duration into other representations, see {@link Duration#as}, {@link Duration#toISO}, {@link Duration#toFormat}, and {@link Duration#toJSON}
   *
   * There's are more methods documented below. In addition, for more information on subtler topics like internationalization and validity, see the external documentation.
   */

  var Duration = /* #__PURE__ */(function () {
    /**
     * @private
     */
    function Duration(config) {
      const accurate = config.conversionAccuracy === 'longterm' || false;
      /**
       * @access private
       */

      this.values = config.values;
      /**
       * @access private
       */

      this.loc = config.loc || Locale.create();
      /**
       * @access private
       */

      this.conversionAccuracy = accurate ? 'longterm' : 'casual';
      /**
       * @access private
       */

      this.invalid = config.invalid || null;
      /**
       * @access private
       */

      this.matrix = accurate ? accurateMatrix : casualMatrix;
      /**
       * @access private
       */

      this.isLuxonDuration = true;
    }
    /**
     * Create Duration from a number of milliseconds.
     * @param {number} count of milliseconds
     * @param {Object} opts - options for parsing
     * @param {string} [opts.locale='en-US'] - the locale to use
     * @param {string} opts.numberingSystem - the numbering system to use
     * @param {string} [opts.conversionAccuracy='casual'] - the conversion system to use
     * @return {Duration}
     */

    Duration.fromMillis = function fromMillis(count, opts) {
      return Duration.fromObject({
        milliseconds: count,
      }, opts);
    }
    /**
     * Create a Duration from a JavaScript object with keys like 'years' and 'hours'.
     * If this object is empty then a zero milliseconds duration is returned.
     * @param {Object} obj - the object to create the DateTime from
     * @param {number} obj.years
     * @param {number} obj.quarters
     * @param {number} obj.months
     * @param {number} obj.weeks
     * @param {number} obj.days
     * @param {number} obj.hours
     * @param {number} obj.minutes
     * @param {number} obj.seconds
     * @param {number} obj.milliseconds
     * @param {Object} [opts=[]] - options for creating this Duration
     * @param {string} [opts.locale='en-US'] - the locale to use
     * @param {string} opts.numberingSystem - the numbering system to use
     * @param {string} [opts.conversionAccuracy='casual'] - the conversion system to use
     * @return {Duration}
     */
    ;

    Duration.fromObject = function fromObject(obj, opts) {
      if (opts === void 0) {
        opts = {};
      }

      if (obj == null || typeof obj !== 'object') {
        throw new InvalidArgumentError(`Duration.fromObject: argument expected to be an object, got ${obj === null ? 'null' : typeof obj}`);
      }

      return new Duration({
        values: normalizeObject(obj, Duration.normalizeUnit),
        loc: Locale.fromObject(opts),
        conversionAccuracy: opts.conversionAccuracy,
      });
    }
    /**
     * Create a Duration from DurationLike.
     *
     * @param {Object | number | Duration} durationLike
     * One of:
     * - object with keys like 'years' and 'hours'.
     * - number representing milliseconds
     * - Duration instance
     * @return {Duration}
     */
    ;

    Duration.fromDurationLike = function fromDurationLike(durationLike) {
      if (isNumber(durationLike)) {
        return Duration.fromMillis(durationLike);
      } if (Duration.isDuration(durationLike)) {
        return durationLike;
      } if (typeof durationLike === 'object') {
        return Duration.fromObject(durationLike);
      }
      throw new InvalidArgumentError(`Unknown duration argument ${durationLike} of type ${typeof durationLike}`);
    }
    /**
     * Create a Duration from an ISO 8601 duration string.
     * @param {string} text - text to parse
     * @param {Object} opts - options for parsing
     * @param {string} [opts.locale='en-US'] - the locale to use
     * @param {string} opts.numberingSystem - the numbering system to use
     * @param {string} [opts.conversionAccuracy='casual'] - the conversion system to use
     * @see https://en.wikipedia.org/wiki/ISO_8601#Durations
     * @example Duration.fromISO('P3Y6M1W4DT12H30M5S').toObject() //=> { years: 3, months: 6, weeks: 1, days: 4, hours: 12, minutes: 30, seconds: 5 }
     * @example Duration.fromISO('PT23H').toObject() //=> { hours: 23 }
     * @example Duration.fromISO('P5Y3M').toObject() //=> { years: 5, months: 3 }
     * @return {Duration}
     */
    ;

    Duration.fromISO = function fromISO(text, opts) {
      const _parseISODuration = parseISODuration(text);
      const parsed = _parseISODuration[0];

      if (parsed) {
        return Duration.fromObject(parsed, opts);
      }
      return Duration.invalid('unparsable', `the input "${text}" can't be parsed as ISO 8601`);
    }
    /**
     * Create a Duration from an ISO 8601 time string.
     * @param {string} text - text to parse
     * @param {Object} opts - options for parsing
     * @param {string} [opts.locale='en-US'] - the locale to use
     * @param {string} opts.numberingSystem - the numbering system to use
     * @param {string} [opts.conversionAccuracy='casual'] - the conversion system to use
     * @see https://en.wikipedia.org/wiki/ISO_8601#Times
     * @example Duration.fromISOTime('11:22:33.444').toObject() //=> { hours: 11, minutes: 22, seconds: 33, milliseconds: 444 }
     * @example Duration.fromISOTime('11:00').toObject() //=> { hours: 11, minutes: 0, seconds: 0 }
     * @example Duration.fromISOTime('T11:00').toObject() //=> { hours: 11, minutes: 0, seconds: 0 }
     * @example Duration.fromISOTime('1100').toObject() //=> { hours: 11, minutes: 0, seconds: 0 }
     * @example Duration.fromISOTime('T1100').toObject() //=> { hours: 11, minutes: 0, seconds: 0 }
     * @return {Duration}
     */
    ;

    Duration.fromISOTime = function fromISOTime(text, opts) {
      const _parseISOTimeOnly = parseISOTimeOnly(text);
      const parsed = _parseISOTimeOnly[0];

      if (parsed) {
        return Duration.fromObject(parsed, opts);
      }
      return Duration.invalid('unparsable', `the input "${text}" can't be parsed as ISO 8601`);
    }
    /**
     * Create an invalid Duration.
     * @param {string} reason - simple string of why this datetime is invalid. Should not contain parameters or anything else data-dependent
     * @param {string} [explanation=null] - longer explanation, may include parameters and other useful debugging information
     * @return {Duration}
     */
    ;

    Duration.invalid = function invalid(reason, explanation) {
      if (explanation === void 0) {
        explanation = null;
      }

      if (!reason) {
        throw new InvalidArgumentError('need to specify a reason the Duration is invalid');
      }

      const invalid = reason instanceof Invalid ? reason : new Invalid(reason, explanation);

      if (Settings.throwOnInvalid) {
        throw new InvalidDurationError(invalid);
      } else {
        return new Duration({
          invalid,
        });
      }
    }
    /**
     * @private
     */
    ;

    Duration.normalizeUnit = function normalizeUnit(unit) {
      const normalized = {
        year: 'years',
        years: 'years',
        quarter: 'quarters',
        quarters: 'quarters',
        month: 'months',
        months: 'months',
        week: 'weeks',
        weeks: 'weeks',
        day: 'days',
        days: 'days',
        hour: 'hours',
        hours: 'hours',
        minute: 'minutes',
        minutes: 'minutes',
        second: 'seconds',
        seconds: 'seconds',
        millisecond: 'milliseconds',
        milliseconds: 'milliseconds',
      }[unit ? unit.toLowerCase() : unit];
      if (!normalized) throw new InvalidUnitError(unit);
      return normalized;
    }
    /**
     * Check if an object is a Duration. Works across context boundaries
     * @param {object} o
     * @return {boolean}
     */
    ;

    Duration.isDuration = function isDuration(o) {
      return o && o.isLuxonDuration || false;
    }
    /**
     * Get  the locale of a Duration, such 'en-GB'
     * @type {string}
     */
    ;

    const _proto = Duration.prototype;

    /**
     * Returns a string representation of this Duration formatted according to the specified format string. You may use these tokens:
     * * `S` for milliseconds
     * * `s` for seconds
     * * `m` for minutes
     * * `h` for hours
     * * `d` for days
     * * `M` for months
     * * `y` for years
     * Notes:
     * * Add padding by repeating the token, e.g. "yy" pads the years to two digits, "hhhh" pads the hours out to four digits
     * * The duration will be converted to the set of units in the format string using {@link Duration#shiftTo} and the Durations's conversion accuracy setting.
     * @param {string} fmt - the format string
     * @param {Object} opts - options
     * @param {boolean} [opts.floor=true] - floor numerical values
     * @example Duration.fromObject({ years: 1, days: 6, seconds: 2 }).toFormat("y d s") //=> "1 6 2"
     * @example Duration.fromObject({ years: 1, days: 6, seconds: 2 }).toFormat("yy dd sss") //=> "01 06 002"
     * @example Duration.fromObject({ years: 1, days: 6, seconds: 2 }).toFormat("M S") //=> "12 518402000"
     * @return {string}
     */
    _proto.toFormat = function toFormat(fmt, opts) {
      if (opts === void 0) {
        opts = {};
      }

      // reverse-compat since 1.2; we always round down now, never up, and we do it by default
      const fmtOpts = { ...opts, floor: opts.round !== false && opts.floor !== false };

      return this.isValid ? Formatter.create(this.loc, fmtOpts).formatDurationFromString(this, fmt) : INVALID$2;
    }
    /**
     * Returns a JavaScript object with this Duration's values.
     * @example Duration.fromObject({ years: 1, days: 6, seconds: 2 }).toObject() //=> { years: 1, days: 6, seconds: 2 }
     * @return {Object}
     */
    ;

    _proto.toObject = function toObject() {
      if (!this.isValid) return {};
      return { ...this.values };
    }
    /**
     * Returns an ISO 8601-compliant string representation of this Duration.
     * @see https://en.wikipedia.org/wiki/ISO_8601#Durations
     * @example Duration.fromObject({ years: 3, seconds: 45 }).toISO() //=> 'P3YT45S'
     * @example Duration.fromObject({ months: 4, seconds: 45 }).toISO() //=> 'P4MT45S'
     * @example Duration.fromObject({ months: 5 }).toISO() //=> 'P5M'
     * @example Duration.fromObject({ minutes: 5 }).toISO() //=> 'PT5M'
     * @example Duration.fromObject({ milliseconds: 6 }).toISO() //=> 'PT0.006S'
     * @return {string}
     */
    ;

    _proto.toISO = function toISO() {
      // we could use the formatter, but this is an easier way to get the minimum string
      if (!this.isValid) return null;
      let s = 'P';
      if (this.years !== 0) s += `${this.years}Y`;
      if (this.months !== 0 || this.quarters !== 0) s += `${this.months + this.quarters * 3}M`;
      if (this.weeks !== 0) s += `${this.weeks}W`;
      if (this.days !== 0) s += `${this.days}D`;
      if (this.hours !== 0 || this.minutes !== 0 || this.seconds !== 0 || this.milliseconds !== 0) s += 'T';
      if (this.hours !== 0) s += `${this.hours}H`;
      if (this.minutes !== 0) s += `${this.minutes}M`;
      if (this.seconds !== 0 || this.milliseconds !== 0) // this will handle "floating point madness" by removing extra decimal places
      // https://stackoverflow.com/questions/588004/is-floating-point-math-broken
      { s += `${roundTo(this.seconds + this.milliseconds / 1000, 3)}S`; }
      if (s === 'P') s += 'T0S';
      return s;
    }
    /**
     * Returns an ISO 8601-compliant string representation of this Duration, formatted as a time of day.
     * Note that this will return null if the duration is invalid, negative, or equal to or greater than 24 hours.
     * @see https://en.wikipedia.org/wiki/ISO_8601#Times
     * @param {Object} opts - options
     * @param {boolean} [opts.suppressMilliseconds=false] - exclude milliseconds from the format if they're 0
     * @param {boolean} [opts.suppressSeconds=false] - exclude seconds from the format if they're 0
     * @param {boolean} [opts.includePrefix=false] - include the `T` prefix
     * @param {string} [opts.format='extended'] - choose between the basic and extended format
     * @example Duration.fromObject({ hours: 11 }).toISOTime() //=> '11:00:00.000'
     * @example Duration.fromObject({ hours: 11 }).toISOTime({ suppressMilliseconds: true }) //=> '11:00:00'
     * @example Duration.fromObject({ hours: 11 }).toISOTime({ suppressSeconds: true }) //=> '11:00'
     * @example Duration.fromObject({ hours: 11 }).toISOTime({ includePrefix: true }) //=> 'T11:00:00.000'
     * @example Duration.fromObject({ hours: 11 }).toISOTime({ format: 'basic' }) //=> '110000.000'
     * @return {string}
     */
    ;

    _proto.toISOTime = function toISOTime(opts) {
      if (opts === void 0) {
        opts = {};
      }

      if (!this.isValid) return null;
      const millis = this.toMillis();
      if (millis < 0 || millis >= 86400000) return null;
      opts = {
        suppressMilliseconds: false,
        suppressSeconds: false,
        includePrefix: false,
        format: 'extended',
        ...opts,
      };
      const value = this.shiftTo('hours', 'minutes', 'seconds', 'milliseconds');
      let fmt = opts.format === 'basic' ? 'hhmm' : 'hh:mm';

      if (!opts.suppressSeconds || value.seconds !== 0 || value.milliseconds !== 0) {
        fmt += opts.format === 'basic' ? 'ss' : ':ss';

        if (!opts.suppressMilliseconds || value.milliseconds !== 0) {
          fmt += '.SSS';
        }
      }

      let str = value.toFormat(fmt);

      if (opts.includePrefix) {
        str = `T${str}`;
      }

      return str;
    }
    /**
     * Returns an ISO 8601 representation of this Duration appropriate for use in JSON.
     * @return {string}
     */
    ;

    _proto.toJSON = function toJSON() {
      return this.toISO();
    }
    /**
     * Returns an ISO 8601 representation of this Duration appropriate for use in debugging.
     * @return {string}
     */
    ;

    _proto.toString = function toString() {
      return this.toISO();
    }
    /**
     * Returns an milliseconds value of this Duration.
     * @return {number}
     */
    ;

    _proto.toMillis = function toMillis() {
      return this.as('milliseconds');
    }
    /**
     * Returns an milliseconds value of this Duration. Alias of {@link toMillis}
     * @return {number}
     */
    ;

    _proto.valueOf = function valueOf() {
      return this.toMillis();
    }
    /**
     * Make this Duration longer by the specified amount. Return a newly-constructed Duration.
     * @param {Duration|Object|number} duration - The amount to add. Either a Luxon Duration, a number of milliseconds, the object argument to Duration.fromObject()
     * @return {Duration}
     */
    ;

    _proto.plus = function plus(duration) {
      if (!this.isValid) return this;
      const dur = Duration.fromDurationLike(duration);
      const result = {};

      for (var _iterator = _createForOfIteratorHelperLoose(orderedUnits$1), _step; !(_step = _iterator()).done;) {
        const k = _step.value;

        if (hasOwnProperty(dur.values, k) || hasOwnProperty(this.values, k)) {
          result[k] = dur.get(k) + this.get(k);
        }
      }

      return clone$1(this, {
        values: result,
      }, true);
    }
    /**
     * Make this Duration shorter by the specified amount. Return a newly-constructed Duration.
     * @param {Duration|Object|number} duration - The amount to subtract. Either a Luxon Duration, a number of milliseconds, the object argument to Duration.fromObject()
     * @return {Duration}
     */
    ;

    _proto.minus = function minus(duration) {
      if (!this.isValid) return this;
      const dur = Duration.fromDurationLike(duration);
      return this.plus(dur.negate());
    }
    /**
     * Scale this Duration by the specified amount. Return a newly-constructed Duration.
     * @param {function} fn - The function to apply to each unit. Arity is 1 or 2: the value of the unit and, optionally, the unit name. Must return a number.
     * @example Duration.fromObject({ hours: 1, minutes: 30 }).mapUnits(x => x * 2) //=> { hours: 2, minutes: 60 }
     * @example Duration.fromObject({ hours: 1, minutes: 30 }).mapUnits((x, u) => u === "hour" ? x * 2 : x) //=> { hours: 2, minutes: 30 }
     * @return {Duration}
     */
    ;

    _proto.mapUnits = function mapUnits(fn) {
      if (!this.isValid) return this;
      const result = {};

      for (let _i = 0, _Object$keys = Object.keys(this.values); _i < _Object$keys.length; _i++) {
        const k = _Object$keys[_i];
        result[k] = asNumber(fn(this.values[k], k));
      }

      return clone$1(this, {
        values: result,
      }, true);
    }
    /**
     * Get the value of unit.
     * @param {string} unit - a unit such as 'minute' or 'day'
     * @example Duration.fromObject({years: 2, days: 3}).get('years') //=> 2
     * @example Duration.fromObject({years: 2, days: 3}).get('months') //=> 0
     * @example Duration.fromObject({years: 2, days: 3}).get('days') //=> 3
     * @return {number}
     */
    ;

    _proto.get = function get(unit) {
      return this[Duration.normalizeUnit(unit)];
    }
    /**
     * "Set" the values of specified units. Return a newly-constructed Duration.
     * @param {Object} values - a mapping of units to numbers
     * @example dur.set({ years: 2017 })
     * @example dur.set({ hours: 8, minutes: 30 })
     * @return {Duration}
     */
    ;

    _proto.set = function set(values) {
      if (!this.isValid) return this;

      const mixed = { ...this.values, ...normalizeObject(values, Duration.normalizeUnit) };

      return clone$1(this, {
        values: mixed,
      });
    }
    /**
     * "Set" the locale and/or numberingSystem.  Returns a newly-constructed Duration.
     * @example dur.reconfigure({ locale: 'en-GB' })
     * @return {Duration}
     */
    ;

    _proto.reconfigure = function reconfigure(_temp) {
      const _ref = _temp === void 0 ? {} : _temp;
      const { locale } = _ref;
      const { numberingSystem } = _ref;
      const { conversionAccuracy } = _ref;

      const loc = this.loc.clone({
        locale,
        numberingSystem,
      });
      const opts = {
        loc,
      };

      if (conversionAccuracy) {
        opts.conversionAccuracy = conversionAccuracy;
      }

      return clone$1(this, opts);
    }
    /**
     * Return the length of the duration in the specified unit.
     * @param {string} unit - a unit such as 'minutes' or 'days'
     * @example Duration.fromObject({years: 1}).as('days') //=> 365
     * @example Duration.fromObject({years: 1}).as('months') //=> 12
     * @example Duration.fromObject({hours: 60}).as('days') //=> 2.5
     * @return {number}
     */
    ;

    _proto.as = function as(unit) {
      return this.isValid ? this.shiftTo(unit).get(unit) : NaN;
    }
    /**
     * Reduce this Duration to its canonical representation in its current units.
     * @example Duration.fromObject({ years: 2, days: 5000 }).normalize().toObject() //=> { years: 15, days: 255 }
     * @example Duration.fromObject({ hours: 12, minutes: -45 }).normalize().toObject() //=> { hours: 11, minutes: 15 }
     * @return {Duration}
     */
    ;

    _proto.normalize = function normalize() {
      if (!this.isValid) return this;
      const vals = this.toObject();
      normalizeValues(this.matrix, vals);
      return clone$1(this, {
        values: vals,
      }, true);
    }
    /**
     * Convert this Duration into its representation in a different set of units.
     * @example Duration.fromObject({ hours: 1, seconds: 30 }).shiftTo('minutes', 'milliseconds').toObject() //=> { minutes: 60, milliseconds: 30000 }
     * @return {Duration}
     */
    ;

    _proto.shiftTo = function shiftTo() {
      for (var _len = arguments.length, units = new Array(_len), _key = 0; _key < _len; _key++) {
        units[_key] = arguments[_key];
      }

      if (!this.isValid) return this;

      if (units.length === 0) {
        return this;
      }

      units = units.map((u) => Duration.normalizeUnit(u));
      const built = {};
      const accumulated = {};
      const vals = this.toObject();
      let lastUnit;

      for (var _iterator2 = _createForOfIteratorHelperLoose(orderedUnits$1), _step2; !(_step2 = _iterator2()).done;) {
        const k = _step2.value;

        if (units.indexOf(k) >= 0) {
          lastUnit = k;
          let own = 0; // anything we haven't boiled down yet should get boiled to this unit

          for (const ak in accumulated) {
            own += this.matrix[ak][k] * accumulated[ak];
            accumulated[ak] = 0;
          } // plus anything that's already in this unit

          if (isNumber(vals[k])) {
            own += vals[k];
          }

          const i = Math.trunc(own);
          built[k] = i;
          accumulated[k] = own - i; // we'd like to absorb these fractions in another unit
          // plus anything further down the chain that should be rolled up in to this

          for (const down in vals) {
            if (orderedUnits$1.indexOf(down) > orderedUnits$1.indexOf(k)) {
              convert(this.matrix, vals, down, built, k);
            }
          } // otherwise, keep it in the wings to boil it later
        } else if (isNumber(vals[k])) {
          accumulated[k] = vals[k];
        }
      } // anything leftover becomes the decimal for the last unit
      // lastUnit must be defined since units is not empty

      for (const key in accumulated) {
        if (accumulated[key] !== 0) {
          built[lastUnit] += key === lastUnit ? accumulated[key] : accumulated[key] / this.matrix[lastUnit][key];
        }
      }

      return clone$1(this, {
        values: built,
      }, true).normalize();
    }
    /**
     * Return the negative of this Duration.
     * @example Duration.fromObject({ hours: 1, seconds: 30 }).negate().toObject() //=> { hours: -1, seconds: -30 }
     * @return {Duration}
     */
    ;

    _proto.negate = function negate() {
      if (!this.isValid) return this;
      const negated = {};

      for (let _i2 = 0, _Object$keys2 = Object.keys(this.values); _i2 < _Object$keys2.length; _i2++) {
        const k = _Object$keys2[_i2];
        negated[k] = -this.values[k];
      }

      return clone$1(this, {
        values: negated,
      }, true);
    }
    /**
     * Get the years.
     * @type {number}
     */
    ;

    /**
     * Equality check
     * Two Durations are equal iff they have the same units and the same values for each unit.
     * @param {Duration} other
     * @return {boolean}
     */
    _proto.equals = function equals(other) {
      if (!this.isValid || !other.isValid) {
        return false;
      }

      if (!this.loc.equals(other.loc)) {
        return false;
      }

      function eq(v1, v2) {
        // Consider 0 and undefined as equal
        if (v1 === undefined || v1 === 0) return v2 === undefined || v2 === 0;
        return v1 === v2;
      }

      for (var _iterator3 = _createForOfIteratorHelperLoose(orderedUnits$1), _step3; !(_step3 = _iterator3()).done;) {
        const u = _step3.value;

        if (!eq(this.values[u], other.values[u])) {
          return false;
        }
      }

      return true;
    };

    _createClass(Duration, [{
      key: 'locale',
      get: function get() {
        return this.isValid ? this.loc.locale : null;
      },
      /**
       * Get the numbering system of a Duration, such 'beng'. The numbering system is used when formatting the Duration
       *
       * @type {string}
       */

    }, {
      key: 'numberingSystem',
      get: function get() {
        return this.isValid ? this.loc.numberingSystem : null;
      },
    }, {
      key: 'years',
      get: function get() {
        return this.isValid ? this.values.years || 0 : NaN;
      },
      /**
       * Get the quarters.
       * @type {number}
       */

    }, {
      key: 'quarters',
      get: function get() {
        return this.isValid ? this.values.quarters || 0 : NaN;
      },
      /**
       * Get the months.
       * @type {number}
       */

    }, {
      key: 'months',
      get: function get() {
        return this.isValid ? this.values.months || 0 : NaN;
      },
      /**
       * Get the weeks
       * @type {number}
       */

    }, {
      key: 'weeks',
      get: function get() {
        return this.isValid ? this.values.weeks || 0 : NaN;
      },
      /**
       * Get the days.
       * @type {number}
       */

    }, {
      key: 'days',
      get: function get() {
        return this.isValid ? this.values.days || 0 : NaN;
      },
      /**
       * Get the hours.
       * @type {number}
       */

    }, {
      key: 'hours',
      get: function get() {
        return this.isValid ? this.values.hours || 0 : NaN;
      },
      /**
       * Get the minutes.
       * @type {number}
       */

    }, {
      key: 'minutes',
      get: function get() {
        return this.isValid ? this.values.minutes || 0 : NaN;
      },
      /**
       * Get the seconds.
       * @return {number}
       */

    }, {
      key: 'seconds',
      get: function get() {
        return this.isValid ? this.values.seconds || 0 : NaN;
      },
      /**
       * Get the milliseconds.
       * @return {number}
       */

    }, {
      key: 'milliseconds',
      get: function get() {
        return this.isValid ? this.values.milliseconds || 0 : NaN;
      },
      /**
       * Returns whether the Duration is invalid. Invalid durations are returned by diff operations
       * on invalid DateTimes or Intervals.
       * @return {boolean}
       */

    }, {
      key: 'isValid',
      get: function get() {
        return this.invalid === null;
      },
      /**
       * Returns an error code if this Duration became invalid, or null if the Duration is valid
       * @return {string}
       */

    }, {
      key: 'invalidReason',
      get: function get() {
        return this.invalid ? this.invalid.reason : null;
      },
      /**
       * Returns an explanation of why this Duration became invalid, or null if the Duration is valid
       * @type {string}
       */

    }, {
      key: 'invalidExplanation',
      get: function get() {
        return this.invalid ? this.invalid.explanation : null;
      },
    }]);

    return Duration;
  }());

  const INVALID$1 = 'Invalid Interval'; // checks if the start is equal to or before the end

  function validateStartEnd(start, end) {
    if (!start || !start.isValid) {
      return Interval.invalid('missing or invalid start');
    } if (!end || !end.isValid) {
      return Interval.invalid('missing or invalid end');
    } if (end < start) {
      return Interval.invalid('end before start', `The end of an interval must be after its start, but you had start=${start.toISO()} and end=${end.toISO()}`);
    }
    return null;
  }
  /**
   * An Interval object represents a half-open interval of time, where each endpoint is a {@link DateTime}. Conceptually, it's a container for those two endpoints, accompanied by methods for creating, parsing, interrogating, comparing, transforming, and formatting them.
   *
   * Here is a brief overview of the most commonly used methods and getters in Interval:
   *
   * * **Creation** To create an Interval, use {@link Interval#fromDateTimes}, {@link Interval#after}, {@link Interval#before}, or {@link Interval#fromISO}.
   * * **Accessors** Use {@link Interval#start} and {@link Interval#end} to get the start and end.
   * * **Interrogation** To analyze the Interval, use {@link Interval#count}, {@link Interval#length}, {@link Interval#hasSame}, {@link Interval#contains}, {@link Interval#isAfter}, or {@link Interval#isBefore}.
   * * **Transformation** To create other Intervals out of this one, use {@link Interval#set}, {@link Interval#splitAt}, {@link Interval#splitBy}, {@link Interval#divideEqually}, {@link Interval#merge}, {@link Interval#xor}, {@link Interval#union}, {@link Interval#intersection}, or {@link Interval#difference}.
   * * **Comparison** To compare this Interval to another one, use {@link Interval#equals}, {@link Interval#overlaps}, {@link Interval#abutsStart}, {@link Interval#abutsEnd}, {@link Interval#engulfs}
   * * **Output** To convert the Interval into other representations, see {@link Interval#toString}, {@link Interval#toISO}, {@link Interval#toISODate}, {@link Interval#toISOTime}, {@link Interval#toFormat}, and {@link Interval#toDuration}.
   */

  var Interval = /* #__PURE__ */(function () {
    /**
     * @private
     */
    function Interval(config) {
      /**
       * @access private
       */
      this.s = config.start;
      /**
       * @access private
       */

      this.e = config.end;
      /**
       * @access private
       */

      this.invalid = config.invalid || null;
      /**
       * @access private
       */

      this.isLuxonInterval = true;
    }
    /**
     * Create an invalid Interval.
     * @param {string} reason - simple string of why this Interval is invalid. Should not contain parameters or anything else data-dependent
     * @param {string} [explanation=null] - longer explanation, may include parameters and other useful debugging information
     * @return {Interval}
     */

    Interval.invalid = function invalid(reason, explanation) {
      if (explanation === void 0) {
        explanation = null;
      }

      if (!reason) {
        throw new InvalidArgumentError('need to specify a reason the Interval is invalid');
      }

      const invalid = reason instanceof Invalid ? reason : new Invalid(reason, explanation);

      if (Settings.throwOnInvalid) {
        throw new InvalidIntervalError(invalid);
      } else {
        return new Interval({
          invalid,
        });
      }
    }
    /**
     * Create an Interval from a start DateTime and an end DateTime. Inclusive of the start but not the end.
     * @param {DateTime|Date|Object} start
     * @param {DateTime|Date|Object} end
     * @return {Interval}
     */
    ;

    Interval.fromDateTimes = function fromDateTimes(start, end) {
      const builtStart = friendlyDateTime(start);
      const builtEnd = friendlyDateTime(end);
      const validateError = validateStartEnd(builtStart, builtEnd);

      if (validateError == null) {
        return new Interval({
          start: builtStart,
          end: builtEnd,
        });
      }
      return validateError;
    }
    /**
     * Create an Interval from a start DateTime and a Duration to extend to.
     * @param {DateTime|Date|Object} start
     * @param {Duration|Object|number} duration - the length of the Interval.
     * @return {Interval}
     */
    ;

    Interval.after = function after(start, duration) {
      const dur = Duration.fromDurationLike(duration);
      const dt = friendlyDateTime(start);
      return Interval.fromDateTimes(dt, dt.plus(dur));
    }
    /**
     * Create an Interval from an end DateTime and a Duration to extend backwards to.
     * @param {DateTime|Date|Object} end
     * @param {Duration|Object|number} duration - the length of the Interval.
     * @return {Interval}
     */
    ;

    Interval.before = function before(end, duration) {
      const dur = Duration.fromDurationLike(duration);
      const dt = friendlyDateTime(end);
      return Interval.fromDateTimes(dt.minus(dur), dt);
    }
    /**
     * Create an Interval from an ISO 8601 string.
     * Accepts `<start>/<end>`, `<start>/<duration>`, and `<duration>/<end>` formats.
     * @param {string} text - the ISO string to parse
     * @param {Object} [opts] - options to pass {@link DateTime#fromISO} and optionally {@link Duration#fromISO}
     * @see https://en.wikipedia.org/wiki/ISO_8601#Time_intervals
     * @return {Interval}
     */
    ;

    Interval.fromISO = function fromISO(text, opts) {
      const _split = (text || '').split('/', 2);
      const s = _split[0];
      const e = _split[1];

      if (s && e) {
        let start; let
          startIsValid;

        try {
          start = DateTime.fromISO(s, opts);
          startIsValid = start.isValid;
        } catch (e) {
          startIsValid = false;
        }

        let end; let
          endIsValid;

        try {
          end = DateTime.fromISO(e, opts);
          endIsValid = end.isValid;
        } catch (e) {
          endIsValid = false;
        }

        if (startIsValid && endIsValid) {
          return Interval.fromDateTimes(start, end);
        }

        if (startIsValid) {
          const dur = Duration.fromISO(e, opts);

          if (dur.isValid) {
            return Interval.after(start, dur);
          }
        } else if (endIsValid) {
          const _dur = Duration.fromISO(s, opts);

          if (_dur.isValid) {
            return Interval.before(end, _dur);
          }
        }
      }

      return Interval.invalid('unparsable', `the input "${text}" can't be parsed as ISO 8601`);
    }
    /**
     * Check if an object is an Interval. Works across context boundaries
     * @param {object} o
     * @return {boolean}
     */
    ;

    Interval.isInterval = function isInterval(o) {
      return o && o.isLuxonInterval || false;
    }
    /**
     * Returns the start of the Interval
     * @type {DateTime}
     */
    ;

    const _proto = Interval.prototype;

    /**
     * Returns the length of the Interval in the specified unit.
     * @param {string} unit - the unit (such as 'hours' or 'days') to return the length in.
     * @return {number}
     */
    _proto.length = function length(unit) {
      if (unit === void 0) {
        unit = 'milliseconds';
      }

      return this.isValid ? this.toDuration.apply(this, [unit]).get(unit) : NaN;
    }
    /**
     * Returns the count of minutes, hours, days, months, or years included in the Interval, even in part.
     * Unlike {@link Interval#length} this counts sections of the calendar, not periods of time, e.g. specifying 'day'
     * asks 'what dates are included in this interval?', not 'how many days long is this interval?'
     * @param {string} [unit='milliseconds'] - the unit of time to count.
     * @return {number}
     */
    ;

    _proto.count = function count(unit) {
      if (unit === void 0) {
        unit = 'milliseconds';
      }

      if (!this.isValid) return NaN;
      const start = this.start.startOf(unit);
      const end = this.end.startOf(unit);
      return Math.floor(end.diff(start, unit).get(unit)) + 1;
    }
    /**
     * Returns whether this Interval's start and end are both in the same unit of time
     * @param {string} unit - the unit of time to check sameness on
     * @return {boolean}
     */
    ;

    _proto.hasSame = function hasSame(unit) {
      return this.isValid ? this.isEmpty() || this.e.minus(1).hasSame(this.s, unit) : false;
    }
    /**
     * Return whether this Interval has the same start and end DateTimes.
     * @return {boolean}
     */
    ;

    _proto.isEmpty = function isEmpty() {
      return this.s.valueOf() === this.e.valueOf();
    }
    /**
     * Return whether this Interval's start is after the specified DateTime.
     * @param {DateTime} dateTime
     * @return {boolean}
     */
    ;

    _proto.isAfter = function isAfter(dateTime) {
      if (!this.isValid) return false;
      return this.s > dateTime;
    }
    /**
     * Return whether this Interval's end is before the specified DateTime.
     * @param {DateTime} dateTime
     * @return {boolean}
     */
    ;

    _proto.isBefore = function isBefore(dateTime) {
      if (!this.isValid) return false;
      return this.e <= dateTime;
    }
    /**
     * Return whether this Interval contains the specified DateTime.
     * @param {DateTime} dateTime
     * @return {boolean}
     */
    ;

    _proto.contains = function contains(dateTime) {
      if (!this.isValid) return false;
      return this.s <= dateTime && this.e > dateTime;
    }
    /**
     * "Sets" the start and/or end dates. Returns a newly-constructed Interval.
     * @param {Object} values - the values to set
     * @param {DateTime} values.start - the starting DateTime
     * @param {DateTime} values.end - the ending DateTime
     * @return {Interval}
     */
    ;

    _proto.set = function set(_temp) {
      const _ref = _temp === void 0 ? {} : _temp;
      const { start } = _ref;
      const { end } = _ref;

      if (!this.isValid) return this;
      return Interval.fromDateTimes(start || this.s, end || this.e);
    }
    /**
     * Split this Interval at each of the specified DateTimes
     * @param {...DateTime} dateTimes - the unit of time to count.
     * @return {Array}
     */
    ;

    _proto.splitAt = function splitAt() {
      const _this = this;

      if (!this.isValid) return [];

      for (var _len = arguments.length, dateTimes = new Array(_len), _key = 0; _key < _len; _key++) {
        dateTimes[_key] = arguments[_key];
      }

      const sorted = dateTimes.map(friendlyDateTime).filter((d) => _this.contains(d)).sort();
      const results = [];
      let { s } = this;
      let i = 0;

      while (s < this.e) {
        const added = sorted[i] || this.e;
        const next = +added > +this.e ? this.e : added;
        results.push(Interval.fromDateTimes(s, next));
        s = next;
        i += 1;
      }

      return results;
    }
    /**
     * Split this Interval into smaller Intervals, each of the specified length.
     * Left over time is grouped into a smaller interval
     * @param {Duration|Object|number} duration - The length of each resulting interval.
     * @return {Array}
     */
    ;

    _proto.splitBy = function splitBy(duration) {
      const dur = Duration.fromDurationLike(duration);

      if (!this.isValid || !dur.isValid || dur.as('milliseconds') === 0) {
        return [];
      }

      let { s } = this;
      let idx = 1;
      let next;
      const results = [];

      while (s < this.e) {
        const added = this.start.plus(dur.mapUnits((x) => x * idx));
        next = +added > +this.e ? this.e : added;
        results.push(Interval.fromDateTimes(s, next));
        s = next;
        idx += 1;
      }

      return results;
    }
    /**
     * Split this Interval into the specified number of smaller intervals.
     * @param {number} numberOfParts - The number of Intervals to divide the Interval into.
     * @return {Array}
     */
    ;

    _proto.divideEqually = function divideEqually(numberOfParts) {
      if (!this.isValid) return [];
      return this.splitBy(this.length() / numberOfParts).slice(0, numberOfParts);
    }
    /**
     * Return whether this Interval overlaps with the specified Interval
     * @param {Interval} other
     * @return {boolean}
     */
    ;

    _proto.overlaps = function overlaps(other) {
      return this.e > other.s && this.s < other.e;
    }
    /**
     * Return whether this Interval's end is adjacent to the specified Interval's start.
     * @param {Interval} other
     * @return {boolean}
     */
    ;

    _proto.abutsStart = function abutsStart(other) {
      if (!this.isValid) return false;
      return +this.e === +other.s;
    }
    /**
     * Return whether this Interval's start is adjacent to the specified Interval's end.
     * @param {Interval} other
     * @return {boolean}
     */
    ;

    _proto.abutsEnd = function abutsEnd(other) {
      if (!this.isValid) return false;
      return +other.e === +this.s;
    }
    /**
     * Return whether this Interval engulfs the start and end of the specified Interval.
     * @param {Interval} other
     * @return {boolean}
     */
    ;

    _proto.engulfs = function engulfs(other) {
      if (!this.isValid) return false;
      return this.s <= other.s && this.e >= other.e;
    }
    /**
     * Return whether this Interval has the same start and end as the specified Interval.
     * @param {Interval} other
     * @return {boolean}
     */
    ;

    _proto.equals = function equals(other) {
      if (!this.isValid || !other.isValid) {
        return false;
      }

      return this.s.equals(other.s) && this.e.equals(other.e);
    }
    /**
     * Return an Interval representing the intersection of this Interval and the specified Interval.
     * Specifically, the resulting Interval has the maximum start time and the minimum end time of the two Intervals.
     * Returns null if the intersection is empty, meaning, the intervals don't intersect.
     * @param {Interval} other
     * @return {Interval}
     */
    ;

    _proto.intersection = function intersection(other) {
      if (!this.isValid) return this;
      const s = this.s > other.s ? this.s : other.s;
      const e = this.e < other.e ? this.e : other.e;

      if (s >= e) {
        return null;
      }
      return Interval.fromDateTimes(s, e);
    }
    /**
     * Return an Interval representing the union of this Interval and the specified Interval.
     * Specifically, the resulting Interval has the minimum start time and the maximum end time of the two Intervals.
     * @param {Interval} other
     * @return {Interval}
     */
    ;

    _proto.union = function union(other) {
      if (!this.isValid) return this;
      const s = this.s < other.s ? this.s : other.s;
      const e = this.e > other.e ? this.e : other.e;
      return Interval.fromDateTimes(s, e);
    }
    /**
     * Merge an array of Intervals into a equivalent minimal set of Intervals.
     * Combines overlapping and adjacent Intervals.
     * @param {Array} intervals
     * @return {Array}
     */
    ;

    Interval.merge = function merge(intervals) {
      const _intervals$sort$reduc = intervals.sort((a, b) => a.s - b.s).reduce((_ref2, item) => {
        const sofar = _ref2[0];
        const current = _ref2[1];

        if (!current) {
          return [sofar, item];
        } if (current.overlaps(item) || current.abutsStart(item)) {
          return [sofar, current.union(item)];
        }
        return [sofar.concat([current]), item];
      }, [[], null]);
      const found = _intervals$sort$reduc[0];
      const final = _intervals$sort$reduc[1];

      if (final) {
        found.push(final);
      }

      return found;
    }
    /**
     * Return an array of Intervals representing the spans of time that only appear in one of the specified Intervals.
     * @param {Array} intervals
     * @return {Array}
     */
    ;

    Interval.xor = function xor(intervals) {
      let _Array$prototype;

      let start = null;
      let currentCount = 0;

      const results = [];
      const ends = intervals.map((i) => [{
        time: i.s,
        type: 's',
      }, {
        time: i.e,
        type: 'e',
      }]);
      const flattened = (_Array$prototype = Array.prototype).concat.apply(_Array$prototype, ends);
      const arr = flattened.sort((a, b) => a.time - b.time);

      for (var _iterator = _createForOfIteratorHelperLoose(arr), _step; !(_step = _iterator()).done;) {
        const i = _step.value;
        currentCount += i.type === 's' ? 1 : -1;

        if (currentCount === 1) {
          start = i.time;
        } else {
          if (start && +start !== +i.time) {
            results.push(Interval.fromDateTimes(start, i.time));
          }

          start = null;
        }
      }

      return Interval.merge(results);
    }
    /**
     * Return an Interval representing the span of time in this Interval that doesn't overlap with any of the specified Intervals.
     * @param {...Interval} intervals
     * @return {Array}
     */
    ;

    _proto.difference = function difference() {
      const _this2 = this;

      for (var _len2 = arguments.length, intervals = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
        intervals[_key2] = arguments[_key2];
      }

      return Interval.xor([this].concat(intervals)).map((i) => _this2.intersection(i)).filter((i) => i && !i.isEmpty());
    }
    /**
     * Returns a string representation of this Interval appropriate for debugging.
     * @return {string}
     */
    ;

    _proto.toString = function toString() {
      if (!this.isValid) return INVALID$1;
      return `[${this.s.toISO()} \u2013 ${this.e.toISO()})`;
    }
    /**
     * Returns an ISO 8601-compliant string representation of this Interval.
     * @see https://en.wikipedia.org/wiki/ISO_8601#Time_intervals
     * @param {Object} opts - The same options as {@link DateTime#toISO}
     * @return {string}
     */
    ;

    _proto.toISO = function toISO(opts) {
      if (!this.isValid) return INVALID$1;
      return `${this.s.toISO(opts)}/${this.e.toISO(opts)}`;
    }
    /**
     * Returns an ISO 8601-compliant string representation of date of this Interval.
     * The time components are ignored.
     * @see https://en.wikipedia.org/wiki/ISO_8601#Time_intervals
     * @return {string}
     */
    ;

    _proto.toISODate = function toISODate() {
      if (!this.isValid) return INVALID$1;
      return `${this.s.toISODate()}/${this.e.toISODate()}`;
    }
    /**
     * Returns an ISO 8601-compliant string representation of time of this Interval.
     * The date components are ignored.
     * @see https://en.wikipedia.org/wiki/ISO_8601#Time_intervals
     * @param {Object} opts - The same options as {@link DateTime#toISO}
     * @return {string}
     */
    ;

    _proto.toISOTime = function toISOTime(opts) {
      if (!this.isValid) return INVALID$1;
      return `${this.s.toISOTime(opts)}/${this.e.toISOTime(opts)}`;
    }
    /**
     * Returns a string representation of this Interval formatted according to the specified format string.
     * @param {string} dateFormat - the format string. This string formats the start and end time. See {@link DateTime#toFormat} for details.
     * @param {Object} opts - options
     * @param {string} [opts.separator =  ' – '] - a separator to place between the start and end representations
     * @return {string}
     */
    ;

    _proto.toFormat = function toFormat(dateFormat, _temp2) {
      const _ref3 = _temp2 === void 0 ? {} : _temp2;
      const _ref3$separator = _ref3.separator;
      const separator = _ref3$separator === void 0 ? ' – ' : _ref3$separator;

      if (!this.isValid) return INVALID$1;
      return `${this.s.toFormat(dateFormat)}${separator}${this.e.toFormat(dateFormat)}`;
    }
    /**
     * Return a Duration representing the time spanned by this interval.
     * @param {string|string[]} [unit=['milliseconds']] - the unit or units (such as 'hours' or 'days') to include in the duration.
     * @param {Object} opts - options that affect the creation of the Duration
     * @param {string} [opts.conversionAccuracy='casual'] - the conversion system to use
     * @example Interval.fromDateTimes(dt1, dt2).toDuration().toObject() //=> { milliseconds: 88489257 }
     * @example Interval.fromDateTimes(dt1, dt2).toDuration('days').toObject() //=> { days: 1.0241812152777778 }
     * @example Interval.fromDateTimes(dt1, dt2).toDuration(['hours', 'minutes']).toObject() //=> { hours: 24, minutes: 34.82095 }
     * @example Interval.fromDateTimes(dt1, dt2).toDuration(['hours', 'minutes', 'seconds']).toObject() //=> { hours: 24, minutes: 34, seconds: 49.257 }
     * @example Interval.fromDateTimes(dt1, dt2).toDuration('seconds').toObject() //=> { seconds: 88489.257 }
     * @return {Duration}
     */
    ;

    _proto.toDuration = function toDuration(unit, opts) {
      if (!this.isValid) {
        return Duration.invalid(this.invalidReason);
      }

      return this.e.diff(this.s, unit, opts);
    }
    /**
     * Run mapFn on the interval start and end, returning a new Interval from the resulting DateTimes
     * @param {function} mapFn
     * @return {Interval}
     * @example Interval.fromDateTimes(dt1, dt2).mapEndpoints(endpoint => endpoint.toUTC())
     * @example Interval.fromDateTimes(dt1, dt2).mapEndpoints(endpoint => endpoint.plus({ hours: 2 }))
     */
    ;

    _proto.mapEndpoints = function mapEndpoints(mapFn) {
      return Interval.fromDateTimes(mapFn(this.s), mapFn(this.e));
    };

    _createClass(Interval, [{
      key: 'start',
      get: function get() {
        return this.isValid ? this.s : null;
      },
      /**
       * Returns the end of the Interval
       * @type {DateTime}
       */

    }, {
      key: 'end',
      get: function get() {
        return this.isValid ? this.e : null;
      },
      /**
       * Returns whether this Interval's end is at least its start, meaning that the Interval isn't 'backwards'.
       * @type {boolean}
       */

    }, {
      key: 'isValid',
      get: function get() {
        return this.invalidReason === null;
      },
      /**
       * Returns an error code if this Interval is invalid, or null if the Interval is valid
       * @type {string}
       */

    }, {
      key: 'invalidReason',
      get: function get() {
        return this.invalid ? this.invalid.reason : null;
      },
      /**
       * Returns an explanation of why this Interval became invalid, or null if the Interval is valid
       * @type {string}
       */

    }, {
      key: 'invalidExplanation',
      get: function get() {
        return this.invalid ? this.invalid.explanation : null;
      },
    }]);

    return Interval;
  }());

  /**
   * The Info class contains static methods for retrieving general time and date related data. For example, it has methods for finding out if a time zone has a DST, for listing the months in any supported locale, and for discovering which of Luxon features are available in the current environment.
   */

  const Info = /* #__PURE__ */(function () {
    function Info() {}

    /**
     * Return whether the specified zone contains a DST.
     * @param {string|Zone} [zone='local'] - Zone to check. Defaults to the environment's local zone.
     * @return {boolean}
     */
    Info.hasDST = function hasDST(zone) {
      if (zone === void 0) {
        zone = Settings.defaultZone;
      }

      const proto = DateTime.now().setZone(zone).set({
        month: 12,
      });
      return !zone.isUniversal && proto.offset !== proto.set({
        month: 6,
      }).offset;
    }
    /**
     * Return whether the specified zone is a valid IANA specifier.
     * @param {string} zone - Zone to check
     * @return {boolean}
     */
    ;

    Info.isValidIANAZone = function isValidIANAZone(zone) {
      return IANAZone.isValidSpecifier(zone) && IANAZone.isValidZone(zone);
    }
    /**
     * Converts the input into a {@link Zone} instance.
     *
     * * If `input` is already a Zone instance, it is returned unchanged.
     * * If `input` is a string containing a valid time zone name, a Zone instance
     *   with that name is returned.
     * * If `input` is a string that doesn't refer to a known time zone, a Zone
     *   instance with {@link Zone#isValid} == false is returned.
     * * If `input is a number, a Zone instance with the specified fixed offset
     *   in minutes is returned.
     * * If `input` is `null` or `undefined`, the default zone is returned.
     * @param {string|Zone|number} [input] - the value to be converted
     * @return {Zone}
     */
    ;

    Info.normalizeZone = function normalizeZone$1(input) {
      return normalizeZone(input, Settings.defaultZone);
    }
    /**
     * Return an array of standalone month names.
     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat
     * @param {string} [length='long'] - the length of the month representation, such as "numeric", "2-digit", "narrow", "short", "long"
     * @param {Object} opts - options
     * @param {string} [opts.locale] - the locale code
     * @param {string} [opts.numberingSystem=null] - the numbering system
     * @param {string} [opts.locObj=null] - an existing locale object to use
     * @param {string} [opts.outputCalendar='gregory'] - the calendar
     * @example Info.months()[0] //=> 'January'
     * @example Info.months('short')[0] //=> 'Jan'
     * @example Info.months('numeric')[0] //=> '1'
     * @example Info.months('short', { locale: 'fr-CA' } )[0] //=> 'janv.'
     * @example Info.months('numeric', { locale: 'ar' })[0] //=> '١'
     * @example Info.months('long', { outputCalendar: 'islamic' })[0] //=> 'Rabiʻ I'
     * @return {Array}
     */
    ;

    Info.months = function months(length, _temp) {
      if (length === void 0) {
        length = 'long';
      }

      const _ref = _temp === void 0 ? {} : _temp;
      const _ref$locale = _ref.locale;
      const locale = _ref$locale === void 0 ? null : _ref$locale;
      const _ref$numberingSystem = _ref.numberingSystem;
      const numberingSystem = _ref$numberingSystem === void 0 ? null : _ref$numberingSystem;
      const _ref$locObj = _ref.locObj;
      const locObj = _ref$locObj === void 0 ? null : _ref$locObj;
      const _ref$outputCalendar = _ref.outputCalendar;
      const outputCalendar = _ref$outputCalendar === void 0 ? 'gregory' : _ref$outputCalendar;

      return (locObj || Locale.create(locale, numberingSystem, outputCalendar)).months(length);
    }
    /**
     * Return an array of format month names.
     * Format months differ from standalone months in that they're meant to appear next to the day of the month. In some languages, that
     * changes the string.
     * See {@link Info#months}
     * @param {string} [length='long'] - the length of the month representation, such as "numeric", "2-digit", "narrow", "short", "long"
     * @param {Object} opts - options
     * @param {string} [opts.locale] - the locale code
     * @param {string} [opts.numberingSystem=null] - the numbering system
     * @param {string} [opts.locObj=null] - an existing locale object to use
     * @param {string} [opts.outputCalendar='gregory'] - the calendar
     * @return {Array}
     */
    ;

    Info.monthsFormat = function monthsFormat(length, _temp2) {
      if (length === void 0) {
        length = 'long';
      }

      const _ref2 = _temp2 === void 0 ? {} : _temp2;
      const _ref2$locale = _ref2.locale;
      const locale = _ref2$locale === void 0 ? null : _ref2$locale;
      const _ref2$numberingSystem = _ref2.numberingSystem;
      const numberingSystem = _ref2$numberingSystem === void 0 ? null : _ref2$numberingSystem;
      const _ref2$locObj = _ref2.locObj;
      const locObj = _ref2$locObj === void 0 ? null : _ref2$locObj;
      const _ref2$outputCalendar = _ref2.outputCalendar;
      const outputCalendar = _ref2$outputCalendar === void 0 ? 'gregory' : _ref2$outputCalendar;

      return (locObj || Locale.create(locale, numberingSystem, outputCalendar)).months(length, true);
    }
    /**
     * Return an array of standalone week names.
     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat
     * @param {string} [length='long'] - the length of the weekday representation, such as "narrow", "short", "long".
     * @param {Object} opts - options
     * @param {string} [opts.locale] - the locale code
     * @param {string} [opts.numberingSystem=null] - the numbering system
     * @param {string} [opts.locObj=null] - an existing locale object to use
     * @example Info.weekdays()[0] //=> 'Monday'
     * @example Info.weekdays('short')[0] //=> 'Mon'
     * @example Info.weekdays('short', { locale: 'fr-CA' })[0] //=> 'lun.'
     * @example Info.weekdays('short', { locale: 'ar' })[0] //=> 'الاثنين'
     * @return {Array}
     */
    ;

    Info.weekdays = function weekdays(length, _temp3) {
      if (length === void 0) {
        length = 'long';
      }

      const _ref3 = _temp3 === void 0 ? {} : _temp3;
      const _ref3$locale = _ref3.locale;
      const locale = _ref3$locale === void 0 ? null : _ref3$locale;
      const _ref3$numberingSystem = _ref3.numberingSystem;
      const numberingSystem = _ref3$numberingSystem === void 0 ? null : _ref3$numberingSystem;
      const _ref3$locObj = _ref3.locObj;
      const locObj = _ref3$locObj === void 0 ? null : _ref3$locObj;

      return (locObj || Locale.create(locale, numberingSystem, null)).weekdays(length);
    }
    /**
     * Return an array of format week names.
     * Format weekdays differ from standalone weekdays in that they're meant to appear next to more date information. In some languages, that
     * changes the string.
     * See {@link Info#weekdays}
     * @param {string} [length='long'] - the length of the month representation, such as "narrow", "short", "long".
     * @param {Object} opts - options
     * @param {string} [opts.locale=null] - the locale code
     * @param {string} [opts.numberingSystem=null] - the numbering system
     * @param {string} [opts.locObj=null] - an existing locale object to use
     * @return {Array}
     */
    ;

    Info.weekdaysFormat = function weekdaysFormat(length, _temp4) {
      if (length === void 0) {
        length = 'long';
      }

      const _ref4 = _temp4 === void 0 ? {} : _temp4;
      const _ref4$locale = _ref4.locale;
      const locale = _ref4$locale === void 0 ? null : _ref4$locale;
      const _ref4$numberingSystem = _ref4.numberingSystem;
      const numberingSystem = _ref4$numberingSystem === void 0 ? null : _ref4$numberingSystem;
      const _ref4$locObj = _ref4.locObj;
      const locObj = _ref4$locObj === void 0 ? null : _ref4$locObj;

      return (locObj || Locale.create(locale, numberingSystem, null)).weekdays(length, true);
    }
    /**
     * Return an array of meridiems.
     * @param {Object} opts - options
     * @param {string} [opts.locale] - the locale code
     * @example Info.meridiems() //=> [ 'AM', 'PM' ]
     * @example Info.meridiems({ locale: 'my' }) //=> [ 'နံနက်', 'ညနေ' ]
     * @return {Array}
     */
    ;

    Info.meridiems = function meridiems(_temp5) {
      const _ref5 = _temp5 === void 0 ? {} : _temp5;
      const _ref5$locale = _ref5.locale;
      const locale = _ref5$locale === void 0 ? null : _ref5$locale;

      return Locale.create(locale).meridiems();
    }
    /**
     * Return an array of eras, such as ['BC', 'AD']. The locale can be specified, but the calendar system is always Gregorian.
     * @param {string} [length='short'] - the length of the era representation, such as "short" or "long".
     * @param {Object} opts - options
     * @param {string} [opts.locale] - the locale code
     * @example Info.eras() //=> [ 'BC', 'AD' ]
     * @example Info.eras('long') //=> [ 'Before Christ', 'Anno Domini' ]
     * @example Info.eras('long', { locale: 'fr' }) //=> [ 'avant Jésus-Christ', 'après Jésus-Christ' ]
     * @return {Array}
     */
    ;

    Info.eras = function eras(length, _temp6) {
      if (length === void 0) {
        length = 'short';
      }

      const _ref6 = _temp6 === void 0 ? {} : _temp6;
      const _ref6$locale = _ref6.locale;
      const locale = _ref6$locale === void 0 ? null : _ref6$locale;

      return Locale.create(locale, null, 'gregory').eras(length);
    }
    /**
     * Return the set of available features in this environment.
     * Some features of Luxon are not available in all environments. For example, on older browsers, relative time formatting support is not available. Use this function to figure out if that's the case.
     * Keys:
     * * `relative`: whether this environment supports relative time formatting
     * @example Info.features() //=> { relative: false }
     * @return {Object}
     */
    ;

    Info.features = function features() {
      return {
        relative: hasRelative(),
      };
    };

    return Info;
  }());

  function dayDiff(earlier, later) {
    const utcDayStart = function utcDayStart(dt) {
      return dt.toUTC(0, {
        keepLocalTime: true,
      }).startOf('day').valueOf();
    };
    const ms = utcDayStart(later) - utcDayStart(earlier);

    return Math.floor(Duration.fromMillis(ms).as('days'));
  }

  function highOrderDiffs(cursor, later, units) {
    const differs = [['years', function (a, b) {
      return b.year - a.year;
    }], ['quarters', function (a, b) {
      return b.quarter - a.quarter;
    }], ['months', function (a, b) {
      return b.month - a.month + (b.year - a.year) * 12;
    }], ['weeks', function (a, b) {
      const days = dayDiff(a, b);
      return (days - days % 7) / 7;
    }], ['days', dayDiff]];
    const results = {};
    let lowestOrder; let
      highWater;

    for (let _i = 0, _differs = differs; _i < _differs.length; _i++) {
      const _differs$_i = _differs[_i];
      const unit = _differs$_i[0];
      const differ = _differs$_i[1];

      if (units.indexOf(unit) >= 0) {
        var _cursor$plus;

        lowestOrder = unit;
        let delta = differ(cursor, later);
        highWater = cursor.plus((_cursor$plus = {}, _cursor$plus[unit] = delta, _cursor$plus));

        if (highWater > later) {
          var _cursor$plus2;

          cursor = cursor.plus((_cursor$plus2 = {}, _cursor$plus2[unit] = delta - 1, _cursor$plus2));
          delta -= 1;
        } else {
          cursor = highWater;
        }

        results[unit] = delta;
      }
    }

    return [cursor, results, highWater, lowestOrder];
  }

  function _diff(earlier, later, units, opts) {
    const _highOrderDiffs = highOrderDiffs(earlier, later, units);
    const cursor = _highOrderDiffs[0];
    const results = _highOrderDiffs[1];
    let highWater = _highOrderDiffs[2];
    const lowestOrder = _highOrderDiffs[3];

    const remainingMillis = later - cursor;
    const lowerOrderUnits = units.filter((u) => ['hours', 'minutes', 'seconds', 'milliseconds'].indexOf(u) >= 0);

    if (lowerOrderUnits.length === 0) {
      if (highWater < later) {
        let _cursor$plus3;

        highWater = cursor.plus((_cursor$plus3 = {}, _cursor$plus3[lowestOrder] = 1, _cursor$plus3));
      }

      if (highWater !== cursor) {
        results[lowestOrder] = (results[lowestOrder] || 0) + remainingMillis / (highWater - cursor);
      }
    }

    const duration = Duration.fromObject(results, opts);

    if (lowerOrderUnits.length > 0) {
      let _Duration$fromMillis;

      return (_Duration$fromMillis = Duration.fromMillis(remainingMillis, opts)).shiftTo.apply(_Duration$fromMillis, lowerOrderUnits).plus(duration);
    }
    return duration;
  }

  const numberingSystems = {
    arab: '[\u0660-\u0669]',
    arabext: '[\u06F0-\u06F9]',
    bali: '[\u1B50-\u1B59]',
    beng: '[\u09E6-\u09EF]',
    deva: '[\u0966-\u096F]',
    fullwide: '[\uFF10-\uFF19]',
    gujr: '[\u0AE6-\u0AEF]',
    hanidec: '[〇|一|二|三|四|五|六|七|八|九]',
    khmr: '[\u17E0-\u17E9]',
    knda: '[\u0CE6-\u0CEF]',
    laoo: '[\u0ED0-\u0ED9]',
    limb: '[\u1946-\u194F]',
    mlym: '[\u0D66-\u0D6F]',
    mong: '[\u1810-\u1819]',
    mymr: '[\u1040-\u1049]',
    orya: '[\u0B66-\u0B6F]',
    tamldec: '[\u0BE6-\u0BEF]',
    telu: '[\u0C66-\u0C6F]',
    thai: '[\u0E50-\u0E59]',
    tibt: '[\u0F20-\u0F29]',
    latn: '\\d',
  };
  const numberingSystemsUTF16 = {
    arab: [1632, 1641],
    arabext: [1776, 1785],
    bali: [6992, 7001],
    beng: [2534, 2543],
    deva: [2406, 2415],
    fullwide: [65296, 65303],
    gujr: [2790, 2799],
    khmr: [6112, 6121],
    knda: [3302, 3311],
    laoo: [3792, 3801],
    limb: [6470, 6479],
    mlym: [3430, 3439],
    mong: [6160, 6169],
    mymr: [4160, 4169],
    orya: [2918, 2927],
    tamldec: [3046, 3055],
    telu: [3174, 3183],
    thai: [3664, 3673],
    tibt: [3872, 3881],
  };
  const hanidecChars = numberingSystems.hanidec.replace(/[\[|\]]/g, '').split('');
  function parseDigits(str) {
    let value = parseInt(str, 10);

    if (isNaN(value)) {
      value = '';

      for (let i = 0; i < str.length; i++) {
        const code = str.charCodeAt(i);

        if (str[i].search(numberingSystems.hanidec) !== -1) {
          value += hanidecChars.indexOf(str[i]);
        } else {
          for (const key in numberingSystemsUTF16) {
            const _numberingSystemsUTF = numberingSystemsUTF16[key];
            const min = _numberingSystemsUTF[0];
            const max = _numberingSystemsUTF[1];

            if (code >= min && code <= max) {
              value += code - min;
            }
          }
        }
      }

      return parseInt(value, 10);
    }
    return value;
  }
  function digitRegex(_ref, append) {
    const { numberingSystem } = _ref;

    if (append === void 0) {
      append = '';
    }

    return new RegExp(`${numberingSystems[numberingSystem || 'latn']}${append}`);
  }

  const MISSING_FTP = 'missing Intl.DateTimeFormat.formatToParts support';

  function intUnit(regex, post) {
    if (post === void 0) {
      post = function post(i) {
        return i;
      };
    }

    return {
      regex,
      deser: function deser(_ref) {
        const s = _ref[0];
        return post(parseDigits(s));
      },
    };
  }

  const NBSP = String.fromCharCode(160);
  const spaceOrNBSP = `( |${NBSP})`;
  const spaceOrNBSPRegExp = new RegExp(spaceOrNBSP, 'g');

  function fixListRegex(s) {
    // make dots optional and also make them literal
    // make space and non breakable space characters interchangeable
    return s.replace(/\./g, '\\.?').replace(spaceOrNBSPRegExp, spaceOrNBSP);
  }

  function stripInsensitivities(s) {
    return s.replace(/\./g, '') // ignore dots that were made optional
      .replace(spaceOrNBSPRegExp, ' ') // interchange space and nbsp
      .toLowerCase();
  }

  function oneOf(strings, startIndex) {
    if (strings === null) {
      return null;
    }
    return {
      regex: RegExp(strings.map(fixListRegex).join('|')),
      deser: function deser(_ref2) {
        const s = _ref2[0];
        return strings.findIndex((i) => stripInsensitivities(s) === stripInsensitivities(i)) + startIndex;
      },
    };
  }

  function offset(regex, groups) {
    return {
      regex,
      deser: function deser(_ref3) {
        const h = _ref3[1];
        const m = _ref3[2];
        return signedOffset(h, m);
      },
      groups,
    };
  }

  function simple(regex) {
    return {
      regex,
      deser: function deser(_ref4) {
        const s = _ref4[0];
        return s;
      },
    };
  }

  function escapeToken(value) {
    return value.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, '\\$&');
  }

  function unitForToken(token, loc) {
    const one = digitRegex(loc);
    const two = digitRegex(loc, '{2}');
    const three = digitRegex(loc, '{3}');
    const four = digitRegex(loc, '{4}');
    const six = digitRegex(loc, '{6}');
    const oneOrTwo = digitRegex(loc, '{1,2}');
    const oneToThree = digitRegex(loc, '{1,3}');
    const oneToSix = digitRegex(loc, '{1,6}');
    const oneToNine = digitRegex(loc, '{1,9}');
    const twoToFour = digitRegex(loc, '{2,4}');
    const fourToSix = digitRegex(loc, '{4,6}');
    const literal = function literal(t) {
      return {
        regex: RegExp(escapeToken(t.val)),
        deser: function deser(_ref5) {
          const s = _ref5[0];
          return s;
        },
        literal: true,
      };
    };
    const unitate = function unitate(t) {
      if (token.literal) {
        return literal(t);
      }

      switch (t.val) {
        // era
        case 'G':
          return oneOf(loc.eras('short', false), 0);

        case 'GG':
          return oneOf(loc.eras('long', false), 0);
          // years

        case 'y':
          return intUnit(oneToSix);

        case 'yy':
          return intUnit(twoToFour, untruncateYear);

        case 'yyyy':
          return intUnit(four);

        case 'yyyyy':
          return intUnit(fourToSix);

        case 'yyyyyy':
          return intUnit(six);
          // months

        case 'M':
          return intUnit(oneOrTwo);

        case 'MM':
          return intUnit(two);

        case 'MMM':
          return oneOf(loc.months('short', true, false), 1);

        case 'MMMM':
          return oneOf(loc.months('long', true, false), 1);

        case 'L':
          return intUnit(oneOrTwo);

        case 'LL':
          return intUnit(two);

        case 'LLL':
          return oneOf(loc.months('short', false, false), 1);

        case 'LLLL':
          return oneOf(loc.months('long', false, false), 1);
          // dates

        case 'd':
          return intUnit(oneOrTwo);

        case 'dd':
          return intUnit(two);
          // ordinals

        case 'o':
          return intUnit(oneToThree);

        case 'ooo':
          return intUnit(three);
          // time

        case 'HH':
          return intUnit(two);

        case 'H':
          return intUnit(oneOrTwo);

        case 'hh':
          return intUnit(two);

        case 'h':
          return intUnit(oneOrTwo);

        case 'mm':
          return intUnit(two);

        case 'm':
          return intUnit(oneOrTwo);

        case 'q':
          return intUnit(oneOrTwo);

        case 'qq':
          return intUnit(two);

        case 's':
          return intUnit(oneOrTwo);

        case 'ss':
          return intUnit(two);

        case 'S':
          return intUnit(oneToThree);

        case 'SSS':
          return intUnit(three);

        case 'u':
          return simple(oneToNine);

        case 'uu':
          return simple(oneOrTwo);

        case 'uuu':
          return intUnit(one);
          // meridiem

        case 'a':
          return oneOf(loc.meridiems(), 0);
          // weekYear (k)

        case 'kkkk':
          return intUnit(four);

        case 'kk':
          return intUnit(twoToFour, untruncateYear);
          // weekNumber (W)

        case 'W':
          return intUnit(oneOrTwo);

        case 'WW':
          return intUnit(two);
          // weekdays

        case 'E':
        case 'c':
          return intUnit(one);

        case 'EEE':
          return oneOf(loc.weekdays('short', false, false), 1);

        case 'EEEE':
          return oneOf(loc.weekdays('long', false, false), 1);

        case 'ccc':
          return oneOf(loc.weekdays('short', true, false), 1);

        case 'cccc':
          return oneOf(loc.weekdays('long', true, false), 1);
          // offset/zone

        case 'Z':
        case 'ZZ':
          return offset(new RegExp(`([+-]${oneOrTwo.source})(?::(${two.source}))?`), 2);

        case 'ZZZ':
          return offset(new RegExp(`([+-]${oneOrTwo.source})(${two.source})?`), 2);
          // we don't support ZZZZ (PST) or ZZZZZ (Pacific Standard Time) in parsing
          // because we don't have any way to figure out what they are

        case 'z':
          return simple(/[a-z_+-/]{1,256}?/i);

        default:
          return literal(t);
      }
    };

    const unit = unitate(token) || {
      invalidReason: MISSING_FTP,
    };
    unit.token = token;
    return unit;
  }

  const partTypeStyleToTokenVal = {
    year: {
      '2-digit': 'yy',
      numeric: 'yyyyy',
    },
    month: {
      numeric: 'M',
      '2-digit': 'MM',
      short: 'MMM',
      long: 'MMMM',
    },
    day: {
      numeric: 'd',
      '2-digit': 'dd',
    },
    weekday: {
      short: 'EEE',
      long: 'EEEE',
    },
    dayperiod: 'a',
    dayPeriod: 'a',
    hour: {
      numeric: 'h',
      '2-digit': 'hh',
    },
    minute: {
      numeric: 'm',
      '2-digit': 'mm',
    },
    second: {
      numeric: 's',
      '2-digit': 'ss',
    },
  };

  function tokenForPart(part, locale, formatOpts) {
    const { type } = part;
    const { value } = part;

    if (type === 'literal') {
      return {
        literal: true,
        val: value,
      };
    }

    const style = formatOpts[type];
    let val = partTypeStyleToTokenVal[type];

    if (typeof val === 'object') {
      val = val[style];
    }

    if (val) {
      return {
        literal: false,
        val,
      };
    }

    return undefined;
  }

  function buildRegex(units) {
    const re = units.map((u) => u.regex).reduce((f, r) => `${f}(${r.source})`, '');
    return [`^${re}$`, units];
  }

  function match(input, regex, handlers) {
    const matches = input.match(regex);

    if (matches) {
      const all = {};
      let matchIndex = 1;

      for (const i in handlers) {
        if (hasOwnProperty(handlers, i)) {
          const h = handlers[i];
          const groups = h.groups ? h.groups + 1 : 1;

          if (!h.literal && h.token) {
            all[h.token.val[0]] = h.deser(matches.slice(matchIndex, matchIndex + groups));
          }

          matchIndex += groups;
        }
      }

      return [matches, all];
    }
    return [matches, {}];
  }

  function dateTimeFromMatches(matches) {
    const toField = function toField(token) {
      switch (token) {
        case 'S':
          return 'millisecond';

        case 's':
          return 'second';

        case 'm':
          return 'minute';

        case 'h':
        case 'H':
          return 'hour';

        case 'd':
          return 'day';

        case 'o':
          return 'ordinal';

        case 'L':
        case 'M':
          return 'month';

        case 'y':
          return 'year';

        case 'E':
        case 'c':
          return 'weekday';

        case 'W':
          return 'weekNumber';

        case 'k':
          return 'weekYear';

        case 'q':
          return 'quarter';

        default:
          return null;
      }
    };

    let zone;

    if (!isUndefined(matches.Z)) {
      zone = new FixedOffsetZone(matches.Z);
    } else if (!isUndefined(matches.z)) {
      zone = IANAZone.create(matches.z);
    } else {
      zone = null;
    }

    if (!isUndefined(matches.q)) {
      matches.M = (matches.q - 1) * 3 + 1;
    }

    if (!isUndefined(matches.h)) {
      if (matches.h < 12 && matches.a === 1) {
        matches.h += 12;
      } else if (matches.h === 12 && matches.a === 0) {
        matches.h = 0;
      }
    }

    if (matches.G === 0 && matches.y) {
      matches.y = -matches.y;
    }

    if (!isUndefined(matches.u)) {
      matches.S = parseMillis(matches.u);
    }

    const vals = Object.keys(matches).reduce((r, k) => {
      const f = toField(k);

      if (f) {
        r[f] = matches[k];
      }

      return r;
    }, {});
    return [vals, zone];
  }

  let dummyDateTimeCache = null;

  function getDummyDateTime() {
    if (!dummyDateTimeCache) {
      dummyDateTimeCache = DateTime.fromMillis(1555555555555);
    }

    return dummyDateTimeCache;
  }

  function maybeExpandMacroToken(token, locale) {
    if (token.literal) {
      return token;
    }

    const formatOpts = Formatter.macroTokenToFormatOpts(token.val);

    if (!formatOpts) {
      return token;
    }

    const formatter = Formatter.create(locale, formatOpts);
    const parts = formatter.formatDateTimeParts(getDummyDateTime());
    const tokens = parts.map((p) => tokenForPart(p, locale, formatOpts));

    if (tokens.includes(undefined)) {
      return token;
    }

    return tokens;
  }

  function expandMacroTokens(tokens, locale) {
    let _Array$prototype;

    return (_Array$prototype = Array.prototype).concat.apply(_Array$prototype, tokens.map((t) => maybeExpandMacroToken(t, locale)));
  }
  /**
   * @private
   */

  function explainFromTokens(locale, input, format) {
    const tokens = expandMacroTokens(Formatter.parseFormat(format), locale);
    const units = tokens.map((t) => unitForToken(t, locale));
    const disqualifyingUnit = units.find((t) => t.invalidReason);

    if (disqualifyingUnit) {
      return {
        input,
        tokens,
        invalidReason: disqualifyingUnit.invalidReason,
      };
    }
    const _buildRegex = buildRegex(units);
    const regexString = _buildRegex[0];
    const handlers = _buildRegex[1];
    const regex = RegExp(regexString, 'i');
    const _match = match(input, regex, handlers);
    const rawMatches = _match[0];
    const matches = _match[1];
    const _ref6 = matches ? dateTimeFromMatches(matches) : [null, null];
    const result = _ref6[0];
    const zone = _ref6[1];

    if (hasOwnProperty(matches, 'a') && hasOwnProperty(matches, 'H')) {
      throw new ConflictingSpecificationError("Can't include meridiem when specifying 24-hour format");
    }

    return {
      input,
      tokens,
      regex,
      rawMatches,
      matches,
      result,
      zone,
    };
  }
  function parseFromTokens(locale, input, format) {
    const _explainFromTokens = explainFromTokens(locale, input, format);
    const { result } = _explainFromTokens;
    const { zone } = _explainFromTokens;
    const { invalidReason } = _explainFromTokens;

    return [result, zone, invalidReason];
  }

  const nonLeapLadder = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334];
  const leapLadder = [0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335];

  function unitOutOfRange(unit, value) {
    return new Invalid('unit out of range', `you specified ${value} (of type ${typeof value}) as a ${unit}, which is invalid`);
  }

  function dayOfWeek(year, month, day) {
    const js = new Date(Date.UTC(year, month - 1, day)).getUTCDay();
    return js === 0 ? 7 : js;
  }

  function computeOrdinal(year, month, day) {
    return day + (isLeapYear(year) ? leapLadder : nonLeapLadder)[month - 1];
  }

  function uncomputeOrdinal(year, ordinal) {
    const table = isLeapYear(year) ? leapLadder : nonLeapLadder;
    const month0 = table.findIndex((i) => i < ordinal);
    const day = ordinal - table[month0];
    return {
      month: month0 + 1,
      day,
    };
  }
  /**
   * @private
   */

  function gregorianToWeek(gregObj) {
    const { year } = gregObj;
    const { month } = gregObj;
    const { day } = gregObj;
    const ordinal = computeOrdinal(year, month, day);
    const weekday = dayOfWeek(year, month, day);
    let weekNumber = Math.floor((ordinal - weekday + 10) / 7);
    let weekYear;

    if (weekNumber < 1) {
      weekYear = year - 1;
      weekNumber = weeksInWeekYear(weekYear);
    } else if (weekNumber > weeksInWeekYear(year)) {
      weekYear = year + 1;
      weekNumber = 1;
    } else {
      weekYear = year;
    }

    return {
      weekYear,
      weekNumber,
      weekday,
      ...timeObject(gregObj),
    };
  }
  function weekToGregorian(weekData) {
    const { weekYear } = weekData;
    const { weekNumber } = weekData;
    const { weekday } = weekData;
    const weekdayOfJan4 = dayOfWeek(weekYear, 1, 4);
    const yearInDays = daysInYear(weekYear);
    let ordinal = weekNumber * 7 + weekday - weekdayOfJan4 - 3;
    let year;

    if (ordinal < 1) {
      year = weekYear - 1;
      ordinal += daysInYear(year);
    } else if (ordinal > yearInDays) {
      year = weekYear + 1;
      ordinal -= daysInYear(weekYear);
    } else {
      year = weekYear;
    }

    const _uncomputeOrdinal = uncomputeOrdinal(year, ordinal);
    const { month } = _uncomputeOrdinal;
    const { day } = _uncomputeOrdinal;

    return {
      year,
      month,
      day,
      ...timeObject(weekData),
    };
  }
  function gregorianToOrdinal(gregData) {
    const { year } = gregData;
    const { month } = gregData;
    const { day } = gregData;
    const ordinal = computeOrdinal(year, month, day);
    return {
      year,
      ordinal,
      ...timeObject(gregData),
    };
  }
  function ordinalToGregorian(ordinalData) {
    const { year } = ordinalData;
    const { ordinal } = ordinalData;

    const _uncomputeOrdinal2 = uncomputeOrdinal(year, ordinal);
    const { month } = _uncomputeOrdinal2;
    const { day } = _uncomputeOrdinal2;

    return {
      year,
      month,
      day,
      ...timeObject(ordinalData),
    };
  }
  function hasInvalidWeekData(obj) {
    const validYear = isInteger(obj.weekYear);
    const validWeek = integerBetween(obj.weekNumber, 1, weeksInWeekYear(obj.weekYear));
    const validWeekday = integerBetween(obj.weekday, 1, 7);

    if (!validYear) {
      return unitOutOfRange('weekYear', obj.weekYear);
    } if (!validWeek) {
      return unitOutOfRange('week', obj.week);
    } if (!validWeekday) {
      return unitOutOfRange('weekday', obj.weekday);
    } return false;
  }
  function hasInvalidOrdinalData(obj) {
    const validYear = isInteger(obj.year);
    const validOrdinal = integerBetween(obj.ordinal, 1, daysInYear(obj.year));

    if (!validYear) {
      return unitOutOfRange('year', obj.year);
    } if (!validOrdinal) {
      return unitOutOfRange('ordinal', obj.ordinal);
    } return false;
  }
  function hasInvalidGregorianData(obj) {
    const validYear = isInteger(obj.year);
    const validMonth = integerBetween(obj.month, 1, 12);
    const validDay = integerBetween(obj.day, 1, daysInMonth(obj.year, obj.month));

    if (!validYear) {
      return unitOutOfRange('year', obj.year);
    } if (!validMonth) {
      return unitOutOfRange('month', obj.month);
    } if (!validDay) {
      return unitOutOfRange('day', obj.day);
    } return false;
  }
  function hasInvalidTimeData(obj) {
    const { hour } = obj;
    const { minute } = obj;
    const { second } = obj;
    const { millisecond } = obj;
    const validHour = integerBetween(hour, 0, 23) || hour === 24 && minute === 0 && second === 0 && millisecond === 0;
    const validMinute = integerBetween(minute, 0, 59);
    const validSecond = integerBetween(second, 0, 59);
    const validMillisecond = integerBetween(millisecond, 0, 999);

    if (!validHour) {
      return unitOutOfRange('hour', hour);
    } if (!validMinute) {
      return unitOutOfRange('minute', minute);
    } if (!validSecond) {
      return unitOutOfRange('second', second);
    } if (!validMillisecond) {
      return unitOutOfRange('millisecond', millisecond);
    } return false;
  }

  const INVALID = 'Invalid DateTime';
  const MAX_DATE = 8.64e15;

  function unsupportedZone(zone) {
    return new Invalid('unsupported zone', `the zone "${zone.name}" is not supported`);
  } // we cache week data on the DT object and this intermediates the cache

  function possiblyCachedWeekData(dt) {
    if (dt.weekData === null) {
      dt.weekData = gregorianToWeek(dt.c);
    }

    return dt.weekData;
  } // clone really means, "make a new object with these modifications". all "setters" really use this
  // to create a new object while only changing some of the properties

  function clone(inst, alts) {
    const current = {
      ts: inst.ts,
      zone: inst.zone,
      c: inst.c,
      o: inst.o,
      loc: inst.loc,
      invalid: inst.invalid,
    };
    return new DateTime({ ...current, ...alts, old: current });
  } // find the right offset a given local time. The o input is our guess, which determines which
  // offset we'll pick in ambiguous cases (e.g. there are two 3 AMs b/c Fallback DST)

  function fixOffset(localTS, o, tz) {
    // Our UTC time is just a guess because our offset is just a guess
    let utcGuess = localTS - o * 60 * 1000; // Test whether the zone matches the offset for this ts

    const o2 = tz.offset(utcGuess); // If so, offset didn't change and we're done

    if (o === o2) {
      return [utcGuess, o];
    } // If not, change the ts by the difference in the offset

    utcGuess -= (o2 - o) * 60 * 1000; // If that gives us the local time we want, we're done

    const o3 = tz.offset(utcGuess);

    if (o2 === o3) {
      return [utcGuess, o2];
    } // If it's different, we're in a hole time. The offset has changed, but the we don't adjust the time

    return [localTS - Math.min(o2, o3) * 60 * 1000, Math.max(o2, o3)];
  } // convert an epoch timestamp into a calendar object with the given offset

  function tsToObj(ts, offset) {
    ts += offset * 60 * 1000;
    const d = new Date(ts);
    return {
      year: d.getUTCFullYear(),
      month: d.getUTCMonth() + 1,
      day: d.getUTCDate(),
      hour: d.getUTCHours(),
      minute: d.getUTCMinutes(),
      second: d.getUTCSeconds(),
      millisecond: d.getUTCMilliseconds(),
    };
  } // convert a calendar object to a epoch timestamp

  function objToTS(obj, offset, zone) {
    return fixOffset(objToLocalTS(obj), offset, zone);
  } // create a new DT instance by adding a duration, adjusting for DSTs

  function adjustTime(inst, dur) {
    const oPre = inst.o;
    const year = inst.c.year + Math.trunc(dur.years);
    const month = inst.c.month + Math.trunc(dur.months) + Math.trunc(dur.quarters) * 3;
    const c = {
      ...inst.c,
      year,
      month,
      day: Math.min(inst.c.day, daysInMonth(year, month)) + Math.trunc(dur.days) + Math.trunc(dur.weeks) * 7,
    };
    const millisToAdd = Duration.fromObject({
      years: dur.years - Math.trunc(dur.years),
      quarters: dur.quarters - Math.trunc(dur.quarters),
      months: dur.months - Math.trunc(dur.months),
      weeks: dur.weeks - Math.trunc(dur.weeks),
      days: dur.days - Math.trunc(dur.days),
      hours: dur.hours,
      minutes: dur.minutes,
      seconds: dur.seconds,
      milliseconds: dur.milliseconds,
    }).as('milliseconds');
    const localTS = objToLocalTS(c);

    const _fixOffset = fixOffset(localTS, oPre, inst.zone);
    let ts = _fixOffset[0];
    let o = _fixOffset[1];

    if (millisToAdd !== 0) {
      ts += millisToAdd; // that could have changed the offset by going over a DST, but we want to keep the ts the same

      o = inst.zone.offset(ts);
    }

    return {
      ts,
      o,
    };
  } // helper useful in turning the results of parsing into real dates
  // by handling the zone options

  function parseDataToDateTime(parsed, parsedZone, opts, format, text) {
    const { setZone } = opts;
    const { zone } = opts;

    if (parsed && Object.keys(parsed).length !== 0) {
      const interpretationZone = parsedZone || zone;
      const inst = DateTime.fromObject(parsed, { ...opts, zone: interpretationZone });
      return setZone ? inst : inst.setZone(zone);
    }
    return DateTime.invalid(new Invalid('unparsable', `the input "${text}" can't be parsed as ${format}`));
  } // if you want to output a technical format (e.g. RFC 2822), this helper
  // helps handle the details

  function toTechFormat(dt, format, allowZ) {
    if (allowZ === void 0) {
      allowZ = true;
    }

    return dt.isValid ? Formatter.create(Locale.create('en-US'), {
      allowZ,
      forceSimple: true,
    }).formatDateTimeFromString(dt, format) : null;
  } // technical time formats (e.g. the time part of ISO 8601), take some options
  // and this commonizes their handling

  function toTechTimeFormat(dt, _ref) {
    const _ref$suppressSeconds = _ref.suppressSeconds;
    const suppressSeconds = _ref$suppressSeconds === void 0 ? false : _ref$suppressSeconds;
    const _ref$suppressMillisec = _ref.suppressMilliseconds;
    const suppressMilliseconds = _ref$suppressMillisec === void 0 ? false : _ref$suppressMillisec;
    const { includeOffset } = _ref;
    const _ref$includePrefix = _ref.includePrefix;
    const includePrefix = _ref$includePrefix === void 0 ? false : _ref$includePrefix;
    const _ref$includeZone = _ref.includeZone;
    const includeZone = _ref$includeZone === void 0 ? false : _ref$includeZone;
    const _ref$spaceZone = _ref.spaceZone;
    const spaceZone = _ref$spaceZone === void 0 ? false : _ref$spaceZone;
    const _ref$format = _ref.format;
    const format = _ref$format === void 0 ? 'extended' : _ref$format;
    let fmt = format === 'basic' ? 'HHmm' : 'HH:mm';

    if (!suppressSeconds || dt.second !== 0 || dt.millisecond !== 0) {
      fmt += format === 'basic' ? 'ss' : ':ss';

      if (!suppressMilliseconds || dt.millisecond !== 0) {
        fmt += '.SSS';
      }
    }

    if ((includeZone || includeOffset) && spaceZone) {
      fmt += ' ';
    }

    if (includeZone) {
      fmt += 'z';
    } else if (includeOffset) {
      fmt += format === 'basic' ? 'ZZZ' : 'ZZ';
    }

    let str = toTechFormat(dt, fmt);

    if (includePrefix) {
      str = `T${str}`;
    }

    return str;
  } // defaults for unspecified units in the supported calendars

  const defaultUnitValues = {
    month: 1,
    day: 1,
    hour: 0,
    minute: 0,
    second: 0,
    millisecond: 0,
  };
  const defaultWeekUnitValues = {
    weekNumber: 1,
    weekday: 1,
    hour: 0,
    minute: 0,
    second: 0,
    millisecond: 0,
  };
  const defaultOrdinalUnitValues = {
    ordinal: 1,
    hour: 0,
    minute: 0,
    second: 0,
    millisecond: 0,
  }; // Units in the supported calendars, sorted by bigness

  const orderedUnits = ['year', 'month', 'day', 'hour', 'minute', 'second', 'millisecond'];
  const orderedWeekUnits = ['weekYear', 'weekNumber', 'weekday', 'hour', 'minute', 'second', 'millisecond'];
  const orderedOrdinalUnits = ['year', 'ordinal', 'hour', 'minute', 'second', 'millisecond']; // standardize case and plurality in units

  function normalizeUnit(unit) {
    const normalized = {
      year: 'year',
      years: 'year',
      month: 'month',
      months: 'month',
      day: 'day',
      days: 'day',
      hour: 'hour',
      hours: 'hour',
      minute: 'minute',
      minutes: 'minute',
      quarter: 'quarter',
      quarters: 'quarter',
      second: 'second',
      seconds: 'second',
      millisecond: 'millisecond',
      milliseconds: 'millisecond',
      weekday: 'weekday',
      weekdays: 'weekday',
      weeknumber: 'weekNumber',
      weeksnumber: 'weekNumber',
      weeknumbers: 'weekNumber',
      weekyear: 'weekYear',
      weekyears: 'weekYear',
      ordinal: 'ordinal',
    }[unit.toLowerCase()];
    if (!normalized) throw new InvalidUnitError(unit);
    return normalized;
  } // this is a dumbed down version of fromObject() that runs about 60% faster
  // but doesn't do any validation, makes a bunch of assumptions about what units
  // are present, and so on.
  // this is a dumbed down version of fromObject() that runs about 60% faster
  // but doesn't do any validation, makes a bunch of assumptions about what units
  // are present, and so on.

  function quickDT(obj, opts) {
    const zone = normalizeZone(opts.zone, Settings.defaultZone);
    const loc = Locale.fromObject(opts);
    const tsNow = Settings.now();
    let ts; let
      o; // assume we have the higher-order units

    if (!isUndefined(obj.year)) {
      for (var _iterator = _createForOfIteratorHelperLoose(orderedUnits), _step; !(_step = _iterator()).done;) {
        const u = _step.value;

        if (isUndefined(obj[u])) {
          obj[u] = defaultUnitValues[u];
        }
      }

      const invalid = hasInvalidGregorianData(obj) || hasInvalidTimeData(obj);

      if (invalid) {
        return DateTime.invalid(invalid);
      }

      const offsetProvis = zone.offset(tsNow);

      const _objToTS = objToTS(obj, offsetProvis, zone);

      ts = _objToTS[0];
      o = _objToTS[1];
    } else {
      ts = tsNow;
    }

    return new DateTime({
      ts,
      zone,
      loc,
      o,
    });
  }

  function diffRelative(start, end, opts) {
    const round = isUndefined(opts.round) ? true : opts.round;
    const format = function format(c, unit) {
      c = roundTo(c, round || opts.calendary ? 0 : 2, true);
      const formatter = end.loc.clone(opts).relFormatter(opts);
      return formatter.format(c, unit);
    };
    const differ = function differ(unit) {
      if (opts.calendary) {
        if (!end.hasSame(start, unit)) {
          return end.startOf(unit).diff(start.startOf(unit), unit).get(unit);
        } return 0;
      }
      return end.diff(start, unit).get(unit);
    };

    if (opts.unit) {
      return format(differ(opts.unit), opts.unit);
    }

    for (var _iterator2 = _createForOfIteratorHelperLoose(opts.units), _step2; !(_step2 = _iterator2()).done;) {
      const unit = _step2.value;
      const count = differ(unit);

      if (Math.abs(count) >= 1) {
        return format(count, unit);
      }
    }

    return format(start > end ? -0 : 0, opts.units[opts.units.length - 1]);
  }

  function lastOpts(argList) {
    let opts = {};
    let args;

    if (argList.length > 0 && typeof argList[argList.length - 1] === 'object') {
      opts = argList[argList.length - 1];
      args = Array.from(argList).slice(0, argList.length - 1);
    } else {
      args = Array.from(argList);
    }

    return [opts, args];
  }
  /**
   * A DateTime is an immutable data structure representing a specific date and time and accompanying methods. It contains class and instance methods for creating, parsing, interrogating, transforming, and formatting them.
   *
   * A DateTime comprises of:
   * * A timestamp. Each DateTime instance refers to a specific millisecond of the Unix epoch.
   * * A time zone. Each instance is considered in the context of a specific zone (by default the local system's zone).
   * * Configuration properties that effect how output strings are formatted, such as `locale`, `numberingSystem`, and `outputCalendar`.
   *
   * Here is a brief overview of the most commonly used functionality it provides:
   *
   * * **Creation**: To create a DateTime from its components, use one of its factory class methods: {@link DateTime#local}, {@link DateTime#utc}, and (most flexibly) {@link DateTime#fromObject}. To create one from a standard string format, use {@link DateTime#fromISO}, {@link DateTime#fromHTTP}, and {@link DateTime#fromRFC2822}. To create one from a custom string format, use {@link DateTime#fromFormat}. To create one from a native JS date, use {@link DateTime#fromJSDate}.
   * * **Gregorian calendar and time**: To examine the Gregorian properties of a DateTime individually (i.e as opposed to collectively through {@link DateTime#toObject}), use the {@link DateTime#year}, {@link DateTime#month},
   * {@link DateTime#day}, {@link DateTime#hour}, {@link DateTime#minute}, {@link DateTime#second}, {@link DateTime#millisecond} accessors.
   * * **Week calendar**: For ISO week calendar attributes, see the {@link DateTime#weekYear}, {@link DateTime#weekNumber}, and {@link DateTime#weekday} accessors.
   * * **Configuration** See the {@link DateTime#locale} and {@link DateTime#numberingSystem} accessors.
   * * **Transformation**: To transform the DateTime into other DateTimes, use {@link DateTime#set}, {@link DateTime#reconfigure}, {@link DateTime#setZone}, {@link DateTime#setLocale}, {@link DateTime.plus}, {@link DateTime#minus}, {@link DateTime#endOf}, {@link DateTime#startOf}, {@link DateTime#toUTC}, and {@link DateTime#toLocal}.
   * * **Output**: To convert the DateTime to other representations, use the {@link DateTime#toRelative}, {@link DateTime#toRelativeCalendar}, {@link DateTime#toJSON}, {@link DateTime#toISO}, {@link DateTime#toHTTP}, {@link DateTime#toObject}, {@link DateTime#toRFC2822}, {@link DateTime#toString}, {@link DateTime#toLocaleString}, {@link DateTime#toFormat}, {@link DateTime#toMillis} and {@link DateTime#toJSDate}.
   *
   * There's plenty others documented below. In addition, for more information on subtler topics like internationalization, time zones, alternative calendars, validity, and so on, see the external documentation.
   */

  var DateTime = /* #__PURE__ */(function () {
    /**
     * @access private
     */
    function DateTime(config) {
      const zone = config.zone || Settings.defaultZone;
      let invalid = config.invalid || (Number.isNaN(config.ts) ? new Invalid('invalid input') : null) || (!zone.isValid ? unsupportedZone(zone) : null);
      /**
       * @access private
       */

      this.ts = isUndefined(config.ts) ? Settings.now() : config.ts;
      let c = null;
      let o = null;

      if (!invalid) {
        const unchanged = config.old && config.old.ts === this.ts && config.old.zone.equals(zone);

        if (unchanged) {
          const _ref2 = [config.old.c, config.old.o];
          c = _ref2[0];
          o = _ref2[1];
        } else {
          const ot = zone.offset(this.ts);
          c = tsToObj(this.ts, ot);
          invalid = Number.isNaN(c.year) ? new Invalid('invalid input') : null;
          c = invalid ? null : c;
          o = invalid ? null : ot;
        }
      }
      /**
       * @access private
       */

      this._zone = zone;
      /**
       * @access private
       */

      this.loc = config.loc || Locale.create();
      /**
       * @access private
       */

      this.invalid = invalid;
      /**
       * @access private
       */

      this.weekData = null;
      /**
       * @access private
       */

      this.c = c;
      /**
       * @access private
       */

      this.o = o;
      /**
       * @access private
       */

      this.isLuxonDateTime = true;
    } // CONSTRUCT

    /**
     * Create a DateTime for the current instant, in the system's time zone.
     *
     * Use Settings to override these default values if needed.
     * @example DateTime.now().toISO() //~> now in the ISO format
     * @return {DateTime}
     */

    DateTime.now = function now() {
      return new DateTime({});
    }
    /**
     * Create a local DateTime
     * @param {number} [year] - The calendar year. If omitted (as in, call `local()` with no arguments), the current time will be used
     * @param {number} [month=1] - The month, 1-indexed
     * @param {number} [day=1] - The day of the month, 1-indexed
     * @param {number} [hour=0] - The hour of the day, in 24-hour time
     * @param {number} [minute=0] - The minute of the hour, meaning a number between 0 and 59
     * @param {number} [second=0] - The second of the minute, meaning a number between 0 and 59
     * @param {number} [millisecond=0] - The millisecond of the second, meaning a number between 0 and 999
     * @example DateTime.local()                                  //~> now
     * @example DateTime.local({ zone: "America/New_York" })      //~> now, in US east coast time
     * @example DateTime.local(2017)                              //~> 2017-01-01T00:00:00
     * @example DateTime.local(2017, 3)                           //~> 2017-03-01T00:00:00
     * @example DateTime.local(2017, 3, 12, { locale: "fr" })     //~> 2017-03-12T00:00:00, with a French locale
     * @example DateTime.local(2017, 3, 12, 5)                    //~> 2017-03-12T05:00:00
     * @example DateTime.local(2017, 3, 12, 5, { zone: "utc" })   //~> 2017-03-12T05:00:00, in UTC
     * @example DateTime.local(2017, 3, 12, 5, 45)                //~> 2017-03-12T05:45:00
     * @example DateTime.local(2017, 3, 12, 5, 45, 10)            //~> 2017-03-12T05:45:10
     * @example DateTime.local(2017, 3, 12, 5, 45, 10, 765)       //~> 2017-03-12T05:45:10.765
     * @return {DateTime}
     */
    ;

    DateTime.local = function local() {
      const _lastOpts = lastOpts(arguments);
      const opts = _lastOpts[0];
      const args = _lastOpts[1];
      const year = args[0];
      const month = args[1];
      const day = args[2];
      const hour = args[3];
      const minute = args[4];
      const second = args[5];
      const millisecond = args[6];

      return quickDT({
        year,
        month,
        day,
        hour,
        minute,
        second,
        millisecond,
      }, opts);
    }
    /**
     * Create a DateTime in UTC
     * @param {number} [year] - The calendar year. If omitted (as in, call `utc()` with no arguments), the current time will be used
     * @param {number} [month=1] - The month, 1-indexed
     * @param {number} [day=1] - The day of the month
     * @param {number} [hour=0] - The hour of the day, in 24-hour time
     * @param {number} [minute=0] - The minute of the hour, meaning a number between 0 and 59
     * @param {number} [second=0] - The second of the minute, meaning a number between 0 and 59
     * @param {number} [millisecond=0] - The millisecond of the second, meaning a number between 0 and 999
     * @param {Object} options - configuration options for the DateTime
     * @param {string} [options.locale] - a locale to set on the resulting DateTime instance
     * @param {string} [options.outputCalendar] - the output calendar to set on the resulting DateTime instance
     * @param {string} [options.numberingSystem] - the numbering system to set on the resulting DateTime instance
     * @example DateTime.utc()                                              //~> now
     * @example DateTime.utc(2017)                                          //~> 2017-01-01T00:00:00Z
     * @example DateTime.utc(2017, 3)                                       //~> 2017-03-01T00:00:00Z
     * @example DateTime.utc(2017, 3, 12)                                   //~> 2017-03-12T00:00:00Z
     * @example DateTime.utc(2017, 3, 12, 5)                                //~> 2017-03-12T05:00:00Z
     * @example DateTime.utc(2017, 3, 12, 5, 45)                            //~> 2017-03-12T05:45:00Z
     * @example DateTime.utc(2017, 3, 12, 5, 45, { locale: "fr" })          //~> 2017-03-12T05:45:00Z with a French locale
     * @example DateTime.utc(2017, 3, 12, 5, 45, 10)                        //~> 2017-03-12T05:45:10Z
     * @example DateTime.utc(2017, 3, 12, 5, 45, 10, 765, { locale: "fr" }) //~> 2017-03-12T05:45:10.765Z with a French locale
     * @return {DateTime}
     */
    ;

    DateTime.utc = function utc() {
      const _lastOpts2 = lastOpts(arguments);
      const opts = _lastOpts2[0];
      const args = _lastOpts2[1];
      const year = args[0];
      const month = args[1];
      const day = args[2];
      const hour = args[3];
      const minute = args[4];
      const second = args[5];
      const millisecond = args[6];

      opts.zone = FixedOffsetZone.utcInstance;
      return quickDT({
        year,
        month,
        day,
        hour,
        minute,
        second,
        millisecond,
      }, opts);
    }
    /**
     * Create a DateTime from a JavaScript Date object. Uses the default zone.
     * @param {Date} date - a JavaScript Date object
     * @param {Object} options - configuration options for the DateTime
     * @param {string|Zone} [options.zone='local'] - the zone to place the DateTime into
     * @return {DateTime}
     */
    ;

    DateTime.fromJSDate = function fromJSDate(date, options) {
      if (options === void 0) {
        options = {};
      }

      const ts = isDate(date) ? date.valueOf() : NaN;

      if (Number.isNaN(ts)) {
        return DateTime.invalid('invalid input');
      }

      const zoneToUse = normalizeZone(options.zone, Settings.defaultZone);

      if (!zoneToUse.isValid) {
        return DateTime.invalid(unsupportedZone(zoneToUse));
      }

      return new DateTime({
        ts,
        zone: zoneToUse,
        loc: Locale.fromObject(options),
      });
    }
    /**
     * Create a DateTime from a number of milliseconds since the epoch (meaning since 1 January 1970 00:00:00 UTC). Uses the default zone.
     * @param {number} milliseconds - a number of milliseconds since 1970 UTC
     * @param {Object} options - configuration options for the DateTime
     * @param {string|Zone} [options.zone='local'] - the zone to place the DateTime into
     * @param {string} [options.locale] - a locale to set on the resulting DateTime instance
     * @param {string} options.outputCalendar - the output calendar to set on the resulting DateTime instance
     * @param {string} options.numberingSystem - the numbering system to set on the resulting DateTime instance
     * @return {DateTime}
     */
    ;

    DateTime.fromMillis = function fromMillis(milliseconds, options) {
      if (options === void 0) {
        options = {};
      }

      if (!isNumber(milliseconds)) {
        throw new InvalidArgumentError(`fromMillis requires a numerical input, but received a ${typeof milliseconds} with value ${milliseconds}`);
      } else if (milliseconds < -MAX_DATE || milliseconds > MAX_DATE) {
        // this isn't perfect because because we can still end up out of range because of additional shifting, but it's a start
        return DateTime.invalid('Timestamp out of range');
      } else {
        return new DateTime({
          ts: milliseconds,
          zone: normalizeZone(options.zone, Settings.defaultZone),
          loc: Locale.fromObject(options),
        });
      }
    }
    /**
     * Create a DateTime from a number of seconds since the epoch (meaning since 1 January 1970 00:00:00 UTC). Uses the default zone.
     * @param {number} seconds - a number of seconds since 1970 UTC
     * @param {Object} options - configuration options for the DateTime
     * @param {string|Zone} [options.zone='local'] - the zone to place the DateTime into
     * @param {string} [options.locale] - a locale to set on the resulting DateTime instance
     * @param {string} options.outputCalendar - the output calendar to set on the resulting DateTime instance
     * @param {string} options.numberingSystem - the numbering system to set on the resulting DateTime instance
     * @return {DateTime}
     */
    ;

    DateTime.fromSeconds = function fromSeconds(seconds, options) {
      if (options === void 0) {
        options = {};
      }

      if (!isNumber(seconds)) {
        throw new InvalidArgumentError('fromSeconds requires a numerical input');
      } else {
        return new DateTime({
          ts: seconds * 1000,
          zone: normalizeZone(options.zone, Settings.defaultZone),
          loc: Locale.fromObject(options),
        });
      }
    }
    /**
     * Create a DateTime from a JavaScript object with keys like 'year' and 'hour' with reasonable defaults.
     * @param {Object} obj - the object to create the DateTime from
     * @param {number} obj.year - a year, such as 1987
     * @param {number} obj.month - a month, 1-12
     * @param {number} obj.day - a day of the month, 1-31, depending on the month
     * @param {number} obj.ordinal - day of the year, 1-365 or 366
     * @param {number} obj.weekYear - an ISO week year
     * @param {number} obj.weekNumber - an ISO week number, between 1 and 52 or 53, depending on the year
     * @param {number} obj.weekday - an ISO weekday, 1-7, where 1 is Monday and 7 is Sunday
     * @param {number} obj.hour - hour of the day, 0-23
     * @param {number} obj.minute - minute of the hour, 0-59
     * @param {number} obj.second - second of the minute, 0-59
     * @param {number} obj.millisecond - millisecond of the second, 0-999
     * @param {Object} opts - options for creating this DateTime
     * @param {string|Zone} [opts.zone='local'] - interpret the numbers in the context of a particular zone. Can take any value taken as the first argument to setZone()
     * @param {string} [opts.locale='system's locale'] - a locale to set on the resulting DateTime instance
     * @param {string} opts.outputCalendar - the output calendar to set on the resulting DateTime instance
     * @param {string} opts.numberingSystem - the numbering system to set on the resulting DateTime instance
     * @example DateTime.fromObject({ year: 1982, month: 5, day: 25}).toISODate() //=> '1982-05-25'
     * @example DateTime.fromObject({ year: 1982 }).toISODate() //=> '1982-01-01'
     * @example DateTime.fromObject({ hour: 10, minute: 26, second: 6 }) //~> today at 10:26:06
     * @example DateTime.fromObject({ hour: 10, minute: 26, second: 6 }, { zone: 'utc' }),
     * @example DateTime.fromObject({ hour: 10, minute: 26, second: 6 }, { zone: 'local' })
     * @example DateTime.fromObject({ hour: 10, minute: 26, second: 6 }, { zone: 'America/New_York' })
     * @example DateTime.fromObject({ weekYear: 2016, weekNumber: 2, weekday: 3 }).toISODate() //=> '2016-01-13'
     * @return {DateTime}
     */
    ;

    DateTime.fromObject = function fromObject(obj, opts) {
      if (opts === void 0) {
        opts = {};
      }

      obj = obj || {};
      const zoneToUse = normalizeZone(opts.zone, Settings.defaultZone);

      if (!zoneToUse.isValid) {
        return DateTime.invalid(unsupportedZone(zoneToUse));
      }

      const tsNow = Settings.now();
      const offsetProvis = zoneToUse.offset(tsNow);
      const normalized = normalizeObject(obj, normalizeUnit);
      const containsOrdinal = !isUndefined(normalized.ordinal);
      const containsGregorYear = !isUndefined(normalized.year);
      const containsGregorMD = !isUndefined(normalized.month) || !isUndefined(normalized.day);
      const containsGregor = containsGregorYear || containsGregorMD;
      const definiteWeekDef = normalized.weekYear || normalized.weekNumber;
      const loc = Locale.fromObject(opts); // cases:
      // just a weekday -> this week's instance of that weekday, no worries
      // (gregorian data or ordinal) + (weekYear or weekNumber) -> error
      // (gregorian month or day) + ordinal -> error
      // otherwise just use weeks or ordinals or gregorian, depending on what's specified

      if ((containsGregor || containsOrdinal) && definiteWeekDef) {
        throw new ConflictingSpecificationError("Can't mix weekYear/weekNumber units with year/month/day or ordinals");
      }

      if (containsGregorMD && containsOrdinal) {
        throw new ConflictingSpecificationError("Can't mix ordinal dates with month/day");
      }

      const useWeekData = definiteWeekDef || normalized.weekday && !containsGregor; // configure ourselves to deal with gregorian dates or week stuff

      let units;
      let defaultValues;
      let objNow = tsToObj(tsNow, offsetProvis);

      if (useWeekData) {
        units = orderedWeekUnits;
        defaultValues = defaultWeekUnitValues;
        objNow = gregorianToWeek(objNow);
      } else if (containsOrdinal) {
        units = orderedOrdinalUnits;
        defaultValues = defaultOrdinalUnitValues;
        objNow = gregorianToOrdinal(objNow);
      } else {
        units = orderedUnits;
        defaultValues = defaultUnitValues;
      } // set default values for missing stuff

      let foundFirst = false;

      for (var _iterator3 = _createForOfIteratorHelperLoose(units), _step3; !(_step3 = _iterator3()).done;) {
        const u = _step3.value;
        const v = normalized[u];

        if (!isUndefined(v)) {
          foundFirst = true;
        } else if (foundFirst) {
          normalized[u] = defaultValues[u];
        } else {
          normalized[u] = objNow[u];
        }
      } // make sure the values we have are in range

      const higherOrderInvalid = useWeekData ? hasInvalidWeekData(normalized) : containsOrdinal ? hasInvalidOrdinalData(normalized) : hasInvalidGregorianData(normalized);
      const invalid = higherOrderInvalid || hasInvalidTimeData(normalized);

      if (invalid) {
        return DateTime.invalid(invalid);
      } // compute the actual time

      const gregorian = useWeekData ? weekToGregorian(normalized) : containsOrdinal ? ordinalToGregorian(normalized) : normalized;
      const _objToTS2 = objToTS(gregorian, offsetProvis, zoneToUse);
      const tsFinal = _objToTS2[0];
      const offsetFinal = _objToTS2[1];
      const inst = new DateTime({
        ts: tsFinal,
        zone: zoneToUse,
        o: offsetFinal,
        loc,
      }); // gregorian data + weekday serves only to validate

      if (normalized.weekday && containsGregor && obj.weekday !== inst.weekday) {
        return DateTime.invalid('mismatched weekday', `you can't specify both a weekday of ${normalized.weekday} and a date of ${inst.toISO()}`);
      }

      return inst;
    }
    /**
     * Create a DateTime from an ISO 8601 string
     * @param {string} text - the ISO string
     * @param {Object} opts - options to affect the creation
     * @param {string|Zone} [opts.zone='local'] - use this zone if no offset is specified in the input string itself. Will also convert the time to this zone
     * @param {boolean} [opts.setZone=false] - override the zone with a fixed-offset zone specified in the string itself, if it specifies one
     * @param {string} [opts.locale='system's locale'] - a locale to set on the resulting DateTime instance
     * @param {string} [opts.outputCalendar] - the output calendar to set on the resulting DateTime instance
     * @param {string} [opts.numberingSystem] - the numbering system to set on the resulting DateTime instance
     * @example DateTime.fromISO('2016-05-25T09:08:34.123')
     * @example DateTime.fromISO('2016-05-25T09:08:34.123+06:00')
     * @example DateTime.fromISO('2016-05-25T09:08:34.123+06:00', {setZone: true})
     * @example DateTime.fromISO('2016-05-25T09:08:34.123', {zone: 'utc'})
     * @example DateTime.fromISO('2016-W05-4')
     * @return {DateTime}
     */
    ;

    DateTime.fromISO = function fromISO(text, opts) {
      if (opts === void 0) {
        opts = {};
      }

      const _parseISODate = parseISODate(text);
      const vals = _parseISODate[0];
      const parsedZone = _parseISODate[1];

      return parseDataToDateTime(vals, parsedZone, opts, 'ISO 8601', text);
    }
    /**
     * Create a DateTime from an RFC 2822 string
     * @param {string} text - the RFC 2822 string
     * @param {Object} opts - options to affect the creation
     * @param {string|Zone} [opts.zone='local'] - convert the time to this zone. Since the offset is always specified in the string itself, this has no effect on the interpretation of string, merely the zone the resulting DateTime is expressed in.
     * @param {boolean} [opts.setZone=false] - override the zone with a fixed-offset zone specified in the string itself, if it specifies one
     * @param {string} [opts.locale='system's locale'] - a locale to set on the resulting DateTime instance
     * @param {string} opts.outputCalendar - the output calendar to set on the resulting DateTime instance
     * @param {string} opts.numberingSystem - the numbering system to set on the resulting DateTime instance
     * @example DateTime.fromRFC2822('25 Nov 2016 13:23:12 GMT')
     * @example DateTime.fromRFC2822('Fri, 25 Nov 2016 13:23:12 +0600')
     * @example DateTime.fromRFC2822('25 Nov 2016 13:23 Z')
     * @return {DateTime}
     */
    ;

    DateTime.fromRFC2822 = function fromRFC2822(text, opts) {
      if (opts === void 0) {
        opts = {};
      }

      const _parseRFC2822Date = parseRFC2822Date(text);
      const vals = _parseRFC2822Date[0];
      const parsedZone = _parseRFC2822Date[1];

      return parseDataToDateTime(vals, parsedZone, opts, 'RFC 2822', text);
    }
    /**
     * Create a DateTime from an HTTP header date
     * @see https://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.3.1
     * @param {string} text - the HTTP header date
     * @param {Object} opts - options to affect the creation
     * @param {string|Zone} [opts.zone='local'] - convert the time to this zone. Since HTTP dates are always in UTC, this has no effect on the interpretation of string, merely the zone the resulting DateTime is expressed in.
     * @param {boolean} [opts.setZone=false] - override the zone with the fixed-offset zone specified in the string. For HTTP dates, this is always UTC, so this option is equivalent to setting the `zone` option to 'utc', but this option is included for consistency with similar methods.
     * @param {string} [opts.locale='system's locale'] - a locale to set on the resulting DateTime instance
     * @param {string} opts.outputCalendar - the output calendar to set on the resulting DateTime instance
     * @param {string} opts.numberingSystem - the numbering system to set on the resulting DateTime instance
     * @example DateTime.fromHTTP('Sun, 06 Nov 1994 08:49:37 GMT')
     * @example DateTime.fromHTTP('Sunday, 06-Nov-94 08:49:37 GMT')
     * @example DateTime.fromHTTP('Sun Nov  6 08:49:37 1994')
     * @return {DateTime}
     */
    ;

    DateTime.fromHTTP = function fromHTTP(text, opts) {
      if (opts === void 0) {
        opts = {};
      }

      const _parseHTTPDate = parseHTTPDate(text);
      const vals = _parseHTTPDate[0];
      const parsedZone = _parseHTTPDate[1];

      return parseDataToDateTime(vals, parsedZone, opts, 'HTTP', opts);
    }
    /**
     * Create a DateTime from an input string and format string.
     * Defaults to en-US if no locale has been specified, regardless of the system's locale. For a table of tokens and their interpretations, see [here](https://moment.github.io/luxon/#/parsing?id=table-of-tokens).
     * @param {string} text - the string to parse
     * @param {string} fmt - the format the string is expected to be in (see the link below for the formats)
     * @param {Object} opts - options to affect the creation
     * @param {string|Zone} [opts.zone='local'] - use this zone if no offset is specified in the input string itself. Will also convert the DateTime to this zone
     * @param {boolean} [opts.setZone=false] - override the zone with a zone specified in the string itself, if it specifies one
     * @param {string} [opts.locale='en-US'] - a locale string to use when parsing. Will also set the DateTime to this locale
     * @param {string} opts.numberingSystem - the numbering system to use when parsing. Will also set the resulting DateTime to this numbering system
     * @param {string} opts.outputCalendar - the output calendar to set on the resulting DateTime instance
     * @return {DateTime}
     */
    ;

    DateTime.fromFormat = function fromFormat(text, fmt, opts) {
      if (opts === void 0) {
        opts = {};
      }

      if (isUndefined(text) || isUndefined(fmt)) {
        throw new InvalidArgumentError('fromFormat requires an input string and a format');
      }

      const _opts = opts;
      const _opts$locale = _opts.locale;
      const locale = _opts$locale === void 0 ? null : _opts$locale;
      const _opts$numberingSystem = _opts.numberingSystem;
      const numberingSystem = _opts$numberingSystem === void 0 ? null : _opts$numberingSystem;
      const localeToUse = Locale.fromOpts({
        locale,
        numberingSystem,
        defaultToEN: true,
      });
      const _parseFromTokens = parseFromTokens(localeToUse, text, fmt);
      const vals = _parseFromTokens[0];
      const parsedZone = _parseFromTokens[1];
      const invalid = _parseFromTokens[2];

      if (invalid) {
        return DateTime.invalid(invalid);
      }
      return parseDataToDateTime(vals, parsedZone, opts, `format ${fmt}`, text);
    }
    /**
     * @deprecated use fromFormat instead
     */
    ;

    DateTime.fromString = function fromString(text, fmt, opts) {
      if (opts === void 0) {
        opts = {};
      }

      return DateTime.fromFormat(text, fmt, opts);
    }
    /**
     * Create a DateTime from a SQL date, time, or datetime
     * Defaults to en-US if no locale has been specified, regardless of the system's locale
     * @param {string} text - the string to parse
     * @param {Object} opts - options to affect the creation
     * @param {string|Zone} [opts.zone='local'] - use this zone if no offset is specified in the input string itself. Will also convert the DateTime to this zone
     * @param {boolean} [opts.setZone=false] - override the zone with a zone specified in the string itself, if it specifies one
     * @param {string} [opts.locale='en-US'] - a locale string to use when parsing. Will also set the DateTime to this locale
     * @param {string} opts.numberingSystem - the numbering system to use when parsing. Will also set the resulting DateTime to this numbering system
     * @param {string} opts.outputCalendar - the output calendar to set on the resulting DateTime instance
     * @example DateTime.fromSQL('2017-05-15')
     * @example DateTime.fromSQL('2017-05-15 09:12:34')
     * @example DateTime.fromSQL('2017-05-15 09:12:34.342')
     * @example DateTime.fromSQL('2017-05-15 09:12:34.342+06:00')
     * @example DateTime.fromSQL('2017-05-15 09:12:34.342 America/Los_Angeles')
     * @example DateTime.fromSQL('2017-05-15 09:12:34.342 America/Los_Angeles', { setZone: true })
     * @example DateTime.fromSQL('2017-05-15 09:12:34.342', { zone: 'America/Los_Angeles' })
     * @example DateTime.fromSQL('09:12:34.342')
     * @return {DateTime}
     */
    ;

    DateTime.fromSQL = function fromSQL(text, opts) {
      if (opts === void 0) {
        opts = {};
      }

      const _parseSQL = parseSQL(text);
      const vals = _parseSQL[0];
      const parsedZone = _parseSQL[1];

      return parseDataToDateTime(vals, parsedZone, opts, 'SQL', text);
    }
    /**
     * Create an invalid DateTime.
     * @param {string} reason - simple string of why this DateTime is invalid. Should not contain parameters or anything else data-dependent
     * @param {string} [explanation=null] - longer explanation, may include parameters and other useful debugging information
     * @return {DateTime}
     */
    ;

    DateTime.invalid = function invalid(reason, explanation) {
      if (explanation === void 0) {
        explanation = null;
      }

      if (!reason) {
        throw new InvalidArgumentError('need to specify a reason the DateTime is invalid');
      }

      const invalid = reason instanceof Invalid ? reason : new Invalid(reason, explanation);

      if (Settings.throwOnInvalid) {
        throw new InvalidDateTimeError(invalid);
      } else {
        return new DateTime({
          invalid,
        });
      }
    }
    /**
     * Check if an object is a DateTime. Works across context boundaries
     * @param {object} o
     * @return {boolean}
     */
    ;

    DateTime.isDateTime = function isDateTime(o) {
      return o && o.isLuxonDateTime || false;
    } // INFO

    /**
     * Get the value of unit.
     * @param {string} unit - a unit such as 'minute' or 'day'
     * @example DateTime.local(2017, 7, 4).get('month'); //=> 7
     * @example DateTime.local(2017, 7, 4).get('day'); //=> 4
     * @return {number}
     */
    ;

    const _proto = DateTime.prototype;

    _proto.get = function get(unit) {
      return this[unit];
    }
    /**
     * Returns whether the DateTime is valid. Invalid DateTimes occur when:
     * * The DateTime was created from invalid calendar information, such as the 13th month or February 30
     * * The DateTime was created by an operation on another invalid date
     * @type {boolean}
     */
    ;

    /**
     * Returns the resolved Intl options for this DateTime.
     * This is useful in understanding the behavior of formatting methods
     * @param {Object} opts - the same options as toLocaleString
     * @return {Object}
     */
    _proto.resolvedLocaleOptions = function resolvedLocaleOptions(opts) {
      if (opts === void 0) {
        opts = {};
      }

      const _Formatter$create$res = Formatter.create(this.loc.clone(opts), opts).resolvedOptions(this);
      const { locale } = _Formatter$create$res;
      const { numberingSystem } = _Formatter$create$res;
      const { calendar } = _Formatter$create$res;

      return {
        locale,
        numberingSystem,
        outputCalendar: calendar,
      };
    } // TRANSFORM

    /**
     * "Set" the DateTime's zone to UTC. Returns a newly-constructed DateTime.
     *
     * Equivalent to {@link DateTime#setZone}('utc')
     * @param {number} [offset=0] - optionally, an offset from UTC in minutes
     * @param {Object} [opts={}] - options to pass to `setZone()`
     * @return {DateTime}
     */
    ;

    _proto.toUTC = function toUTC(offset, opts) {
      if (offset === void 0) {
        offset = 0;
      }

      if (opts === void 0) {
        opts = {};
      }

      return this.setZone(FixedOffsetZone.instance(offset), opts);
    }
    /**
     * "Set" the DateTime's zone to the host's local zone. Returns a newly-constructed DateTime.
     *
     * Equivalent to `setZone('local')`
     * @return {DateTime}
     */
    ;

    _proto.toLocal = function toLocal() {
      return this.setZone(Settings.defaultZone);
    }
    /**
     * "Set" the DateTime's zone to specified zone. Returns a newly-constructed DateTime.
     *
     * By default, the setter keeps the underlying time the same (as in, the same timestamp), but the new instance will report different local times and consider DSTs when making computations, as with {@link DateTime#plus}. You may wish to use {@link DateTime#toLocal} and {@link DateTime#toUTC} which provide simple convenience wrappers for commonly used zones.
     * @param {string|Zone} [zone='local'] - a zone identifier. As a string, that can be any IANA zone supported by the host environment, or a fixed-offset name of the form 'UTC+3', or the strings 'local' or 'utc'. You may also supply an instance of a {@link DateTime#Zone} class.
     * @param {Object} opts - options
     * @param {boolean} [opts.keepLocalTime=false] - If true, adjust the underlying time so that the local time stays the same, but in the target zone. You should rarely need this.
     * @return {DateTime}
     */
    ;

    _proto.setZone = function setZone(zone, _temp) {
      const _ref3 = _temp === void 0 ? {} : _temp;
      const _ref3$keepLocalTime = _ref3.keepLocalTime;
      const keepLocalTime = _ref3$keepLocalTime === void 0 ? false : _ref3$keepLocalTime;
      const _ref3$keepCalendarTim = _ref3.keepCalendarTime;
      const keepCalendarTime = _ref3$keepCalendarTim === void 0 ? false : _ref3$keepCalendarTim;

      zone = normalizeZone(zone, Settings.defaultZone);

      if (zone.equals(this.zone)) {
        return this;
      } if (!zone.isValid) {
        return DateTime.invalid(unsupportedZone(zone));
      }
      let newTS = this.ts;

      if (keepLocalTime || keepCalendarTime) {
        const offsetGuess = zone.offset(this.ts);
        const asObj = this.toObject();

        const _objToTS3 = objToTS(asObj, offsetGuess, zone);

        newTS = _objToTS3[0];
      }

      return clone(this, {
        ts: newTS,
        zone,
      });
    }
    /**
     * "Set" the locale, numberingSystem, or outputCalendar. Returns a newly-constructed DateTime.
     * @param {Object} properties - the properties to set
     * @example DateTime.local(2017, 5, 25).reconfigure({ locale: 'en-GB' })
     * @return {DateTime}
     */
    ;

    _proto.reconfigure = function reconfigure(_temp2) {
      const _ref4 = _temp2 === void 0 ? {} : _temp2;
      const { locale } = _ref4;
      const { numberingSystem } = _ref4;
      const { outputCalendar } = _ref4;

      const loc = this.loc.clone({
        locale,
        numberingSystem,
        outputCalendar,
      });
      return clone(this, {
        loc,
      });
    }
    /**
     * "Set" the locale. Returns a newly-constructed DateTime.
     * Just a convenient alias for reconfigure({ locale })
     * @example DateTime.local(2017, 5, 25).setLocale('en-GB')
     * @return {DateTime}
     */
    ;

    _proto.setLocale = function setLocale(locale) {
      return this.reconfigure({
        locale,
      });
    }
    /**
     * "Set" the values of specified units. Returns a newly-constructed DateTime.
     * You can only set units with this method; for "setting" metadata, see {@link DateTime#reconfigure} and {@link DateTime#setZone}.
     * @param {Object} values - a mapping of units to numbers
     * @example dt.set({ year: 2017 })
     * @example dt.set({ hour: 8, minute: 30 })
     * @example dt.set({ weekday: 5 })
     * @example dt.set({ year: 2005, ordinal: 234 })
     * @return {DateTime}
     */
    ;

    _proto.set = function set(values) {
      if (!this.isValid) return this;
      const normalized = normalizeObject(values, normalizeUnit);
      const settingWeekStuff = !isUndefined(normalized.weekYear) || !isUndefined(normalized.weekNumber) || !isUndefined(normalized.weekday);
      const containsOrdinal = !isUndefined(normalized.ordinal);
      const containsGregorYear = !isUndefined(normalized.year);
      const containsGregorMD = !isUndefined(normalized.month) || !isUndefined(normalized.day);
      const containsGregor = containsGregorYear || containsGregorMD;
      const definiteWeekDef = normalized.weekYear || normalized.weekNumber;

      if ((containsGregor || containsOrdinal) && definiteWeekDef) {
        throw new ConflictingSpecificationError("Can't mix weekYear/weekNumber units with year/month/day or ordinals");
      }

      if (containsGregorMD && containsOrdinal) {
        throw new ConflictingSpecificationError("Can't mix ordinal dates with month/day");
      }

      let mixed;

      if (settingWeekStuff) {
        mixed = weekToGregorian({ ...gregorianToWeek(this.c), ...normalized });
      } else if (!isUndefined(normalized.ordinal)) {
        mixed = ordinalToGregorian({ ...gregorianToOrdinal(this.c), ...normalized });
      } else {
        mixed = { ...this.toObject(), ...normalized }; // if we didn't set the day but we ended up on an overflow date,
        // use the last day of the right month

        if (isUndefined(normalized.day)) {
          mixed.day = Math.min(daysInMonth(mixed.year, mixed.month), mixed.day);
        }
      }

      const _objToTS4 = objToTS(mixed, this.o, this.zone);
      const ts = _objToTS4[0];
      const o = _objToTS4[1];

      return clone(this, {
        ts,
        o,
      });
    }
    /**
     * Add a period of time to this DateTime and return the resulting DateTime
     *
     * Adding hours, minutes, seconds, or milliseconds increases the timestamp by the right number of milliseconds. Adding days, months, or years shifts the calendar, accounting for DSTs and leap years along the way. Thus, `dt.plus({ hours: 24 })` may result in a different time than `dt.plus({ days: 1 })` if there's a DST shift in between.
     * @param {Duration|Object|number} duration - The amount to add. Either a Luxon Duration, a number of milliseconds, the object argument to Duration.fromObject()
     * @example DateTime.now().plus(123) //~> in 123 milliseconds
     * @example DateTime.now().plus({ minutes: 15 }) //~> in 15 minutes
     * @example DateTime.now().plus({ days: 1 }) //~> this time tomorrow
     * @example DateTime.now().plus({ days: -1 }) //~> this time yesterday
     * @example DateTime.now().plus({ hours: 3, minutes: 13 }) //~> in 3 hr, 13 min
     * @example DateTime.now().plus(Duration.fromObject({ hours: 3, minutes: 13 })) //~> in 3 hr, 13 min
     * @return {DateTime}
     */
    ;

    _proto.plus = function plus(duration) {
      if (!this.isValid) return this;
      const dur = Duration.fromDurationLike(duration);
      return clone(this, adjustTime(this, dur));
    }
    /**
     * Subtract a period of time to this DateTime and return the resulting DateTime
     * See {@link DateTime#plus}
     * @param {Duration|Object|number} duration - The amount to subtract. Either a Luxon Duration, a number of milliseconds, the object argument to Duration.fromObject()
     @return {DateTime}
    */
    ;

    _proto.minus = function minus(duration) {
      if (!this.isValid) return this;
      const dur = Duration.fromDurationLike(duration).negate();
      return clone(this, adjustTime(this, dur));
    }
    /**
     * "Set" this DateTime to the beginning of a unit of time.
     * @param {string} unit - The unit to go to the beginning of. Can be 'year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', or 'millisecond'.
     * @example DateTime.local(2014, 3, 3).startOf('month').toISODate(); //=> '2014-03-01'
     * @example DateTime.local(2014, 3, 3).startOf('year').toISODate(); //=> '2014-01-01'
     * @example DateTime.local(2014, 3, 3).startOf('week').toISODate(); //=> '2014-03-03', weeks always start on Mondays
     * @example DateTime.local(2014, 3, 3, 5, 30).startOf('day').toISOTime(); //=> '00:00.000-05:00'
     * @example DateTime.local(2014, 3, 3, 5, 30).startOf('hour').toISOTime(); //=> '05:00:00.000-05:00'
     * @return {DateTime}
     */
    ;

    _proto.startOf = function startOf(unit) {
      if (!this.isValid) return this;
      const o = {};
      const normalizedUnit = Duration.normalizeUnit(unit);

      switch (normalizedUnit) {
        case 'years':
          o.month = 1;
          // falls through

        case 'quarters':
        case 'months':
          o.day = 1;
          // falls through

        case 'weeks':
        case 'days':
          o.hour = 0;
          // falls through

        case 'hours':
          o.minute = 0;
          // falls through

        case 'minutes':
          o.second = 0;
          // falls through

        case 'seconds':
          o.millisecond = 0;
          break;
        // no default, invalid units throw in normalizeUnit()
      }

      if (normalizedUnit === 'weeks') {
        o.weekday = 1;
      }

      if (normalizedUnit === 'quarters') {
        const q = Math.ceil(this.month / 3);
        o.month = (q - 1) * 3 + 1;
      }

      return this.set(o);
    }
    /**
     * "Set" this DateTime to the end (meaning the last millisecond) of a unit of time
     * @param {string} unit - The unit to go to the end of. Can be 'year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', or 'millisecond'.
     * @example DateTime.local(2014, 3, 3).endOf('month').toISO(); //=> '2014-03-31T23:59:59.999-05:00'
     * @example DateTime.local(2014, 3, 3).endOf('year').toISO(); //=> '2014-12-31T23:59:59.999-05:00'
     * @example DateTime.local(2014, 3, 3).endOf('week').toISO(); // => '2014-03-09T23:59:59.999-05:00', weeks start on Mondays
     * @example DateTime.local(2014, 3, 3, 5, 30).endOf('day').toISO(); //=> '2014-03-03T23:59:59.999-05:00'
     * @example DateTime.local(2014, 3, 3, 5, 30).endOf('hour').toISO(); //=> '2014-03-03T05:59:59.999-05:00'
     * @return {DateTime}
     */
    ;

    _proto.endOf = function endOf(unit) {
      let _this$plus;

      return this.isValid ? this.plus((_this$plus = {}, _this$plus[unit] = 1, _this$plus)).startOf(unit).minus(1) : this;
    } // OUTPUT

    /**
     * Returns a string representation of this DateTime formatted according to the specified format string.
     * **You may not want this.** See {@link DateTime#toLocaleString} for a more flexible formatting tool. For a table of tokens and their interpretations, see [here](https://moment.github.io/luxon/#/formatting?id=table-of-tokens).
     * Defaults to en-US if no locale has been specified, regardless of the system's locale.
     * @param {string} fmt - the format string
     * @param {Object} opts - opts to override the configuration options on this DateTime
     * @example DateTime.now().toFormat('yyyy LLL dd') //=> '2017 Apr 22'
     * @example DateTime.now().setLocale('fr').toFormat('yyyy LLL dd') //=> '2017 avr. 22'
     * @example DateTime.now().toFormat('yyyy LLL dd', { locale: "fr" }) //=> '2017 avr. 22'
     * @example DateTime.now().toFormat("HH 'hours and' mm 'minutes'") //=> '20 hours and 55 minutes'
     * @return {string}
     */
    ;

    _proto.toFormat = function toFormat(fmt, opts) {
      if (opts === void 0) {
        opts = {};
      }

      return this.isValid ? Formatter.create(this.loc.redefaultToEN(opts)).formatDateTimeFromString(this, fmt) : INVALID;
    }
    /**
     * Returns a localized string representing this date. Accepts the same options as the Intl.DateTimeFormat constructor and any presets defined by Luxon, such as `DateTime.DATE_FULL` or `DateTime.TIME_SIMPLE`.
     * The exact behavior of this method is browser-specific, but in general it will return an appropriate representation
     * of the DateTime in the assigned locale.
     * Defaults to the system's locale if no locale has been specified
     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat
     * @param formatOpts {Object} - Intl.DateTimeFormat constructor options and configuration options
     * @param {Object} opts - opts to override the configuration options on this DateTime
     * @example DateTime.now().toLocaleString(); //=> 4/20/2017
     * @example DateTime.now().setLocale('en-gb').toLocaleString(); //=> '20/04/2017'
     * @example DateTime.now().toLocaleString({ locale: 'en-gb' }); //=> '20/04/2017'
     * @example DateTime.now().toLocaleString(DateTime.DATE_FULL); //=> 'April 20, 2017'
     * @example DateTime.now().toLocaleString(DateTime.TIME_SIMPLE); //=> '11:32 AM'
     * @example DateTime.now().toLocaleString(DateTime.DATETIME_SHORT); //=> '4/20/2017, 11:32 AM'
     * @example DateTime.now().toLocaleString({ weekday: 'long', month: 'long', day: '2-digit' }); //=> 'Thursday, April 20'
     * @example DateTime.now().toLocaleString({ weekday: 'short', month: 'short', day: '2-digit', hour: '2-digit', minute: '2-digit' }); //=> 'Thu, Apr 20, 11:27 AM'
     * @example DateTime.now().toLocaleString({ hour: '2-digit', minute: '2-digit', hourCycle: 'h23' }); //=> '11:32'
     * @return {string}
     */
    ;

    _proto.toLocaleString = function toLocaleString(formatOpts, opts) {
      if (formatOpts === void 0) {
        formatOpts = DATE_SHORT;
      }

      if (opts === void 0) {
        opts = {};
      }

      return this.isValid ? Formatter.create(this.loc.clone(opts), formatOpts).formatDateTime(this) : INVALID;
    }
    /**
     * Returns an array of format "parts", meaning individual tokens along with metadata. This is allows callers to post-process individual sections of the formatted output.
     * Defaults to the system's locale if no locale has been specified
     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat/formatToParts
     * @param opts {Object} - Intl.DateTimeFormat constructor options, same as `toLocaleString`.
     * @example DateTime.now().toLocaleParts(); //=> [
     *                                   //=>   { type: 'day', value: '25' },
     *                                   //=>   { type: 'literal', value: '/' },
     *                                   //=>   { type: 'month', value: '05' },
     *                                   //=>   { type: 'literal', value: '/' },
     *                                   //=>   { type: 'year', value: '1982' }
     *                                   //=> ]
     */
    ;

    _proto.toLocaleParts = function toLocaleParts(opts) {
      if (opts === void 0) {
        opts = {};
      }

      return this.isValid ? Formatter.create(this.loc.clone(opts), opts).formatDateTimeParts(this) : [];
    }
    /**
     * Returns an ISO 8601-compliant string representation of this DateTime
     * @param {Object} opts - options
     * @param {boolean} [opts.suppressMilliseconds=false] - exclude milliseconds from the format if they're 0
     * @param {boolean} [opts.suppressSeconds=false] - exclude seconds from the format if they're 0
     * @param {boolean} [opts.includeOffset=true] - include the offset, such as 'Z' or '-04:00'
     * @param {string} [opts.format='extended'] - choose between the basic and extended format
     * @example DateTime.utc(1982, 5, 25).toISO() //=> '1982-05-25T00:00:00.000Z'
     * @example DateTime.now().toISO() //=> '2017-04-22T20:47:05.335-04:00'
     * @example DateTime.now().toISO({ includeOffset: false }) //=> '2017-04-22T20:47:05.335'
     * @example DateTime.now().toISO({ format: 'basic' }) //=> '20170422T204705.335-0400'
     * @return {string}
     */
    ;

    _proto.toISO = function toISO(opts) {
      if (opts === void 0) {
        opts = {};
      }

      if (!this.isValid) {
        return null;
      }

      return `${this.toISODate(opts)}T${this.toISOTime(opts)}`;
    }
    /**
     * Returns an ISO 8601-compliant string representation of this DateTime's date component
     * @param {Object} opts - options
     * @param {string} [opts.format='extended'] - choose between the basic and extended format
     * @example DateTime.utc(1982, 5, 25).toISODate() //=> '1982-05-25'
     * @example DateTime.utc(1982, 5, 25).toISODate({ format: 'basic' }) //=> '19820525'
     * @return {string}
     */
    ;

    _proto.toISODate = function toISODate(_temp3) {
      const _ref5 = _temp3 === void 0 ? {} : _temp3;
      const _ref5$format = _ref5.format;
      const format = _ref5$format === void 0 ? 'extended' : _ref5$format;

      let fmt = format === 'basic' ? 'yyyyMMdd' : 'yyyy-MM-dd';

      if (this.year > 9999) {
        fmt = `+${fmt}`;
      }

      return toTechFormat(this, fmt);
    }
    /**
     * Returns an ISO 8601-compliant string representation of this DateTime's week date
     * @example DateTime.utc(1982, 5, 25).toISOWeekDate() //=> '1982-W21-2'
     * @return {string}
     */
    ;

    _proto.toISOWeekDate = function toISOWeekDate() {
      return toTechFormat(this, "kkkk-'W'WW-c");
    }
    /**
     * Returns an ISO 8601-compliant string representation of this DateTime's time component
     * @param {Object} opts - options
     * @param {boolean} [opts.suppressMilliseconds=false] - exclude milliseconds from the format if they're 0
     * @param {boolean} [opts.suppressSeconds=false] - exclude seconds from the format if they're 0
     * @param {boolean} [opts.includeOffset=true] - include the offset, such as 'Z' or '-04:00'
     * @param {boolean} [opts.includePrefix=false] - include the `T` prefix
     * @param {string} [opts.format='extended'] - choose between the basic and extended format
     * @example DateTime.utc().set({ hour: 7, minute: 34 }).toISOTime() //=> '07:34:19.361Z'
     * @example DateTime.utc().set({ hour: 7, minute: 34, seconds: 0, milliseconds: 0 }).toISOTime({ suppressSeconds: true }) //=> '07:34Z'
     * @example DateTime.utc().set({ hour: 7, minute: 34 }).toISOTime({ format: 'basic' }) //=> '073419.361Z'
     * @example DateTime.utc().set({ hour: 7, minute: 34 }).toISOTime({ includePrefix: true }) //=> 'T07:34:19.361Z'
     * @return {string}
     */
    ;

    _proto.toISOTime = function toISOTime(_temp4) {
      const _ref6 = _temp4 === void 0 ? {} : _temp4;
      const _ref6$suppressMillise = _ref6.suppressMilliseconds;
      const suppressMilliseconds = _ref6$suppressMillise === void 0 ? false : _ref6$suppressMillise;
      const _ref6$suppressSeconds = _ref6.suppressSeconds;
      const suppressSeconds = _ref6$suppressSeconds === void 0 ? false : _ref6$suppressSeconds;
      const _ref6$includeOffset = _ref6.includeOffset;
      const includeOffset = _ref6$includeOffset === void 0 ? true : _ref6$includeOffset;
      const _ref6$includePrefix = _ref6.includePrefix;
      const includePrefix = _ref6$includePrefix === void 0 ? false : _ref6$includePrefix;
      const _ref6$format = _ref6.format;
      const format = _ref6$format === void 0 ? 'extended' : _ref6$format;

      return toTechTimeFormat(this, {
        suppressSeconds,
        suppressMilliseconds,
        includeOffset,
        includePrefix,
        format,
      });
    }
    /**
     * Returns an RFC 2822-compatible string representation of this DateTime, always in UTC
     * @example DateTime.utc(2014, 7, 13).toRFC2822() //=> 'Sun, 13 Jul 2014 00:00:00 +0000'
     * @example DateTime.local(2014, 7, 13).toRFC2822() //=> 'Sun, 13 Jul 2014 00:00:00 -0400'
     * @return {string}
     */
    ;

    _proto.toRFC2822 = function toRFC2822() {
      return toTechFormat(this, 'EEE, dd LLL yyyy HH:mm:ss ZZZ', false);
    }
    /**
     * Returns a string representation of this DateTime appropriate for use in HTTP headers.
     * Specifically, the string conforms to RFC 1123.
     * @see https://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.3.1
     * @example DateTime.utc(2014, 7, 13).toHTTP() //=> 'Sun, 13 Jul 2014 00:00:00 GMT'
     * @example DateTime.utc(2014, 7, 13, 19).toHTTP() //=> 'Sun, 13 Jul 2014 19:00:00 GMT'
     * @return {string}
     */
    ;

    _proto.toHTTP = function toHTTP() {
      return toTechFormat(this.toUTC(), "EEE, dd LLL yyyy HH:mm:ss 'GMT'");
    }
    /**
     * Returns a string representation of this DateTime appropriate for use in SQL Date
     * @example DateTime.utc(2014, 7, 13).toSQLDate() //=> '2014-07-13'
     * @return {string}
     */
    ;

    _proto.toSQLDate = function toSQLDate() {
      return toTechFormat(this, 'yyyy-MM-dd');
    }
    /**
     * Returns a string representation of this DateTime appropriate for use in SQL Time
     * @param {Object} opts - options
     * @param {boolean} [opts.includeZone=false] - include the zone, such as 'America/New_York'. Overrides includeOffset.
     * @param {boolean} [opts.includeOffset=true] - include the offset, such as 'Z' or '-04:00'
     * @example DateTime.utc().toSQL() //=> '05:15:16.345'
     * @example DateTime.now().toSQL() //=> '05:15:16.345 -04:00'
     * @example DateTime.now().toSQL({ includeOffset: false }) //=> '05:15:16.345'
     * @example DateTime.now().toSQL({ includeZone: false }) //=> '05:15:16.345 America/New_York'
     * @return {string}
     */
    ;

    _proto.toSQLTime = function toSQLTime(_temp5) {
      const _ref7 = _temp5 === void 0 ? {} : _temp5;
      const _ref7$includeOffset = _ref7.includeOffset;
      const includeOffset = _ref7$includeOffset === void 0 ? true : _ref7$includeOffset;
      const _ref7$includeZone = _ref7.includeZone;
      const includeZone = _ref7$includeZone === void 0 ? false : _ref7$includeZone;

      return toTechTimeFormat(this, {
        includeOffset,
        includeZone,
        spaceZone: true,
      });
    }
    /**
     * Returns a string representation of this DateTime appropriate for use in SQL DateTime
     * @param {Object} opts - options
     * @param {boolean} [opts.includeZone=false] - include the zone, such as 'America/New_York'. Overrides includeOffset.
     * @param {boolean} [opts.includeOffset=true] - include the offset, such as 'Z' or '-04:00'
     * @example DateTime.utc(2014, 7, 13).toSQL() //=> '2014-07-13 00:00:00.000 Z'
     * @example DateTime.local(2014, 7, 13).toSQL() //=> '2014-07-13 00:00:00.000 -04:00'
     * @example DateTime.local(2014, 7, 13).toSQL({ includeOffset: false }) //=> '2014-07-13 00:00:00.000'
     * @example DateTime.local(2014, 7, 13).toSQL({ includeZone: true }) //=> '2014-07-13 00:00:00.000 America/New_York'
     * @return {string}
     */
    ;

    _proto.toSQL = function toSQL(opts) {
      if (opts === void 0) {
        opts = {};
      }

      if (!this.isValid) {
        return null;
      }

      return `${this.toSQLDate()} ${this.toSQLTime(opts)}`;
    }
    /**
     * Returns a string representation of this DateTime appropriate for debugging
     * @return {string}
     */
    ;

    _proto.toString = function toString() {
      return this.isValid ? this.toISO() : INVALID;
    }
    /**
     * Returns the epoch milliseconds of this DateTime. Alias of {@link DateTime#toMillis}
     * @return {number}
     */
    ;

    _proto.valueOf = function valueOf() {
      return this.toMillis();
    }
    /**
     * Returns the epoch milliseconds of this DateTime.
     * @return {number}
     */
    ;

    _proto.toMillis = function toMillis() {
      return this.isValid ? this.ts : NaN;
    }
    /**
     * Returns the epoch seconds of this DateTime.
     * @return {number}
     */
    ;

    _proto.toSeconds = function toSeconds() {
      return this.isValid ? this.ts / 1000 : NaN;
    }
    /**
     * Returns an ISO 8601 representation of this DateTime appropriate for use in JSON.
     * @return {string}
     */
    ;

    _proto.toJSON = function toJSON() {
      return this.toISO();
    }
    /**
     * Returns a BSON serializable equivalent to this DateTime.
     * @return {Date}
     */
    ;

    _proto.toBSON = function toBSON() {
      return this.toJSDate();
    }
    /**
     * Returns a JavaScript object with this DateTime's year, month, day, and so on.
     * @param opts - options for generating the object
     * @param {boolean} [opts.includeConfig=false] - include configuration attributes in the output
     * @example DateTime.now().toObject() //=> { year: 2017, month: 4, day: 22, hour: 20, minute: 49, second: 42, millisecond: 268 }
     * @return {Object}
     */
    ;

    _proto.toObject = function toObject(opts) {
      if (opts === void 0) {
        opts = {};
      }

      if (!this.isValid) return {};

      const base = { ...this.c };

      if (opts.includeConfig) {
        base.outputCalendar = this.outputCalendar;
        base.numberingSystem = this.loc.numberingSystem;
        base.locale = this.loc.locale;
      }

      return base;
    }
    /**
     * Returns a JavaScript Date equivalent to this DateTime.
     * @return {Date}
     */
    ;

    _proto.toJSDate = function toJSDate() {
      return new Date(this.isValid ? this.ts : NaN);
    } // COMPARE

    /**
     * Return the difference between two DateTimes as a Duration.
     * @param {DateTime} otherDateTime - the DateTime to compare this one to
     * @param {string|string[]} [unit=['milliseconds']] - the unit or array of units (such as 'hours' or 'days') to include in the duration.
     * @param {Object} opts - options that affect the creation of the Duration
     * @param {string} [opts.conversionAccuracy='casual'] - the conversion system to use
     * @example
     * var i1 = DateTime.fromISO('1982-05-25T09:45'),
     *     i2 = DateTime.fromISO('1983-10-14T10:30');
     * i2.diff(i1).toObject() //=> { milliseconds: 43807500000 }
     * i2.diff(i1, 'hours').toObject() //=> { hours: 12168.75 }
     * i2.diff(i1, ['months', 'days']).toObject() //=> { months: 16, days: 19.03125 }
     * i2.diff(i1, ['months', 'days', 'hours']).toObject() //=> { months: 16, days: 19, hours: 0.75 }
     * @return {Duration}
     */
    ;

    _proto.diff = function diff(otherDateTime, unit, opts) {
      if (unit === void 0) {
        unit = 'milliseconds';
      }

      if (opts === void 0) {
        opts = {};
      }

      if (!this.isValid || !otherDateTime.isValid) {
        return Duration.invalid('created by diffing an invalid DateTime');
      }

      const durOpts = {
        locale: this.locale,
        numberingSystem: this.numberingSystem,
        ...opts,
      };

      const units = maybeArray(unit).map(Duration.normalizeUnit);
      const otherIsLater = otherDateTime.valueOf() > this.valueOf();
      const earlier = otherIsLater ? this : otherDateTime;
      const later = otherIsLater ? otherDateTime : this;
      const diffed = _diff(earlier, later, units, durOpts);

      return otherIsLater ? diffed.negate() : diffed;
    }
    /**
     * Return the difference between this DateTime and right now.
     * See {@link DateTime#diff}
     * @param {string|string[]} [unit=['milliseconds']] - the unit or units units (such as 'hours' or 'days') to include in the duration
     * @param {Object} opts - options that affect the creation of the Duration
     * @param {string} [opts.conversionAccuracy='casual'] - the conversion system to use
     * @return {Duration}
     */
    ;

    _proto.diffNow = function diffNow(unit, opts) {
      if (unit === void 0) {
        unit = 'milliseconds';
      }

      if (opts === void 0) {
        opts = {};
      }

      return this.diff(DateTime.now(), unit, opts);
    }
    /**
     * Return an Interval spanning between this DateTime and another DateTime
     * @param {DateTime} otherDateTime - the other end point of the Interval
     * @return {Interval}
     */
    ;

    _proto.until = function until(otherDateTime) {
      return this.isValid ? Interval.fromDateTimes(this, otherDateTime) : this;
    }
    /**
     * Return whether this DateTime is in the same unit of time as another DateTime.
     * Higher-order units must also be identical for this function to return `true`.
     * Note that time zones are **ignored** in this comparison, which compares the **local** calendar time. Use {@link DateTime#setZone} to convert one of the dates if needed.
     * @param {DateTime} otherDateTime - the other DateTime
     * @param {string} unit - the unit of time to check sameness on
     * @example DateTime.now().hasSame(otherDT, 'day'); //~> true if otherDT is in the same current calendar day
     * @return {boolean}
     */
    ;

    _proto.hasSame = function hasSame(otherDateTime, unit) {
      if (!this.isValid) return false;
      const inputMs = otherDateTime.valueOf();
      const otherZoneDateTime = this.setZone(otherDateTime.zone, {
        keepLocalTime: true,
      });
      return otherZoneDateTime.startOf(unit) <= inputMs && inputMs <= otherZoneDateTime.endOf(unit);
    }
    /**
     * Equality check
     * Two DateTimes are equal iff they represent the same millisecond, have the same zone and location, and are both valid.
     * To compare just the millisecond values, use `+dt1 === +dt2`.
     * @param {DateTime} other - the other DateTime
     * @return {boolean}
     */
    ;

    _proto.equals = function equals(other) {
      return this.isValid && other.isValid && this.valueOf() === other.valueOf() && this.zone.equals(other.zone) && this.loc.equals(other.loc);
    }
    /**
     * Returns a string representation of a this time relative to now, such as "in two days". Can only internationalize if your
     * platform supports Intl.RelativeTimeFormat. Rounds down by default.
     * @param {Object} options - options that affect the output
     * @param {DateTime} [options.base=DateTime.now()] - the DateTime to use as the basis to which this time is compared. Defaults to now.
     * @param {string} [options.style="long"] - the style of units, must be "long", "short", or "narrow"
     * @param {string|string[]} options.unit - use a specific unit or array of units; if omitted, or an array, the method will pick the best unit. Use an array or one of "years", "quarters", "months", "weeks", "days", "hours", "minutes", or "seconds"
     * @param {boolean} [options.round=true] - whether to round the numbers in the output.
     * @param {number} [options.padding=0] - padding in milliseconds. This allows you to round up the result if it fits inside the threshold. Don't use in combination with {round: false} because the decimal output will include the padding.
     * @param {string} options.locale - override the locale of this DateTime
     * @param {string} options.numberingSystem - override the numberingSystem of this DateTime. The Intl system may choose not to honor this
     * @example DateTime.now().plus({ days: 1 }).toRelative() //=> "in 1 day"
     * @example DateTime.now().setLocale("es").toRelative({ days: 1 }) //=> "dentro de 1 día"
     * @example DateTime.now().plus({ days: 1 }).toRelative({ locale: "fr" }) //=> "dans 23 heures"
     * @example DateTime.now().minus({ days: 2 }).toRelative() //=> "2 days ago"
     * @example DateTime.now().minus({ days: 2 }).toRelative({ unit: "hours" }) //=> "48 hours ago"
     * @example DateTime.now().minus({ hours: 36 }).toRelative({ round: false }) //=> "1.5 days ago"
     */
    ;

    _proto.toRelative = function toRelative(options) {
      if (options === void 0) {
        options = {};
      }

      if (!this.isValid) return null;
      const base = options.base || DateTime.fromObject({}, {
        zone: this.zone,
      });
      const padding = options.padding ? this < base ? -options.padding : options.padding : 0;
      let units = ['years', 'months', 'days', 'hours', 'minutes', 'seconds'];
      let { unit } = options;

      if (Array.isArray(options.unit)) {
        units = options.unit;
        unit = undefined;
      }

      return diffRelative(base, this.plus(padding), {
        ...options,
        numeric: 'always',
        units,
        unit,
      });
    }
    /**
     * Returns a string representation of this date relative to today, such as "yesterday" or "next month".
     * Only internationalizes on platforms that supports Intl.RelativeTimeFormat.
     * @param {Object} options - options that affect the output
     * @param {DateTime} [options.base=DateTime.now()] - the DateTime to use as the basis to which this time is compared. Defaults to now.
     * @param {string} options.locale - override the locale of this DateTime
     * @param {string} options.unit - use a specific unit; if omitted, the method will pick the unit. Use one of "years", "quarters", "months", "weeks", or "days"
     * @param {string} options.numberingSystem - override the numberingSystem of this DateTime. The Intl system may choose not to honor this
     * @example DateTime.now().plus({ days: 1 }).toRelativeCalendar() //=> "tomorrow"
     * @example DateTime.now().setLocale("es").plus({ days: 1 }).toRelative() //=> ""mañana"
     * @example DateTime.now().plus({ days: 1 }).toRelativeCalendar({ locale: "fr" }) //=> "demain"
     * @example DateTime.now().minus({ days: 2 }).toRelativeCalendar() //=> "2 days ago"
     */
    ;

    _proto.toRelativeCalendar = function toRelativeCalendar(options) {
      if (options === void 0) {
        options = {};
      }

      if (!this.isValid) return null;
      return diffRelative(options.base || DateTime.fromObject({}, {
        zone: this.zone,
      }), this, {
        ...options,
        numeric: 'auto',
        units: ['years', 'months', 'days'],
        calendary: true,
      });
    }
    /**
     * Return the min of several date times
     * @param {...DateTime} dateTimes - the DateTimes from which to choose the minimum
     * @return {DateTime} the min DateTime, or undefined if called with no argument
     */
    ;

    DateTime.min = function min() {
      for (var _len = arguments.length, dateTimes = new Array(_len), _key = 0; _key < _len; _key++) {
        dateTimes[_key] = arguments[_key];
      }

      if (!dateTimes.every(DateTime.isDateTime)) {
        throw new InvalidArgumentError('min requires all arguments be DateTimes');
      }

      return bestBy(dateTimes, (i) => i.valueOf(), Math.min);
    }
    /**
     * Return the max of several date times
     * @param {...DateTime} dateTimes - the DateTimes from which to choose the maximum
     * @return {DateTime} the max DateTime, or undefined if called with no argument
     */
    ;

    DateTime.max = function max() {
      for (var _len2 = arguments.length, dateTimes = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
        dateTimes[_key2] = arguments[_key2];
      }

      if (!dateTimes.every(DateTime.isDateTime)) {
        throw new InvalidArgumentError('max requires all arguments be DateTimes');
      }

      return bestBy(dateTimes, (i) => i.valueOf(), Math.max);
    } // MISC

    /**
     * Explain how a string would be parsed by fromFormat()
     * @param {string} text - the string to parse
     * @param {string} fmt - the format the string is expected to be in (see description)
     * @param {Object} options - options taken by fromFormat()
     * @return {Object}
     */
    ;

    DateTime.fromFormatExplain = function fromFormatExplain(text, fmt, options) {
      if (options === void 0) {
        options = {};
      }

      const _options = options;
      const _options$locale = _options.locale;
      const locale = _options$locale === void 0 ? null : _options$locale;
      const _options$numberingSys = _options.numberingSystem;
      const numberingSystem = _options$numberingSys === void 0 ? null : _options$numberingSys;
      const localeToUse = Locale.fromOpts({
        locale,
        numberingSystem,
        defaultToEN: true,
      });
      return explainFromTokens(localeToUse, text, fmt);
    }
    /**
     * @deprecated use fromFormatExplain instead
     */
    ;

    DateTime.fromStringExplain = function fromStringExplain(text, fmt, options) {
      if (options === void 0) {
        options = {};
      }

      return DateTime.fromFormatExplain(text, fmt, options);
    } // FORMAT PRESETS

    /**
     * {@link DateTime#toLocaleString} format like 10/14/1983
     * @type {Object}
     */
    ;

    _createClass(DateTime, [{
      key: 'isValid',
      get: function get() {
        return this.invalid === null;
      },
      /**
       * Returns an error code if this DateTime is invalid, or null if the DateTime is valid
       * @type {string}
       */

    }, {
      key: 'invalidReason',
      get: function get() {
        return this.invalid ? this.invalid.reason : null;
      },
      /**
       * Returns an explanation of why this DateTime became invalid, or null if the DateTime is valid
       * @type {string}
       */

    }, {
      key: 'invalidExplanation',
      get: function get() {
        return this.invalid ? this.invalid.explanation : null;
      },
      /**
       * Get the locale of a DateTime, such 'en-GB'. The locale is used when formatting the DateTime
       *
       * @type {string}
       */

    }, {
      key: 'locale',
      get: function get() {
        return this.isValid ? this.loc.locale : null;
      },
      /**
       * Get the numbering system of a DateTime, such 'beng'. The numbering system is used when formatting the DateTime
       *
       * @type {string}
       */

    }, {
      key: 'numberingSystem',
      get: function get() {
        return this.isValid ? this.loc.numberingSystem : null;
      },
      /**
       * Get the output calendar of a DateTime, such 'islamic'. The output calendar is used when formatting the DateTime
       *
       * @type {string}
       */

    }, {
      key: 'outputCalendar',
      get: function get() {
        return this.isValid ? this.loc.outputCalendar : null;
      },
      /**
       * Get the time zone associated with this DateTime.
       * @type {Zone}
       */

    }, {
      key: 'zone',
      get: function get() {
        return this._zone;
      },
      /**
       * Get the name of the time zone.
       * @type {string}
       */

    }, {
      key: 'zoneName',
      get: function get() {
        return this.isValid ? this.zone.name : null;
      },
      /**
       * Get the year
       * @example DateTime.local(2017, 5, 25).year //=> 2017
       * @type {number}
       */

    }, {
      key: 'year',
      get: function get() {
        return this.isValid ? this.c.year : NaN;
      },
      /**
       * Get the quarter
       * @example DateTime.local(2017, 5, 25).quarter //=> 2
       * @type {number}
       */

    }, {
      key: 'quarter',
      get: function get() {
        return this.isValid ? Math.ceil(this.c.month / 3) : NaN;
      },
      /**
       * Get the month (1-12).
       * @example DateTime.local(2017, 5, 25).month //=> 5
       * @type {number}
       */

    }, {
      key: 'month',
      get: function get() {
        return this.isValid ? this.c.month : NaN;
      },
      /**
       * Get the day of the month (1-30ish).
       * @example DateTime.local(2017, 5, 25).day //=> 25
       * @type {number}
       */

    }, {
      key: 'day',
      get: function get() {
        return this.isValid ? this.c.day : NaN;
      },
      /**
       * Get the hour of the day (0-23).
       * @example DateTime.local(2017, 5, 25, 9).hour //=> 9
       * @type {number}
       */

    }, {
      key: 'hour',
      get: function get() {
        return this.isValid ? this.c.hour : NaN;
      },
      /**
       * Get the minute of the hour (0-59).
       * @example DateTime.local(2017, 5, 25, 9, 30).minute //=> 30
       * @type {number}
       */

    }, {
      key: 'minute',
      get: function get() {
        return this.isValid ? this.c.minute : NaN;
      },
      /**
       * Get the second of the minute (0-59).
       * @example DateTime.local(2017, 5, 25, 9, 30, 52).second //=> 52
       * @type {number}
       */

    }, {
      key: 'second',
      get: function get() {
        return this.isValid ? this.c.second : NaN;
      },
      /**
       * Get the millisecond of the second (0-999).
       * @example DateTime.local(2017, 5, 25, 9, 30, 52, 654).millisecond //=> 654
       * @type {number}
       */

    }, {
      key: 'millisecond',
      get: function get() {
        return this.isValid ? this.c.millisecond : NaN;
      },
      /**
       * Get the week year
       * @see https://en.wikipedia.org/wiki/ISO_week_date
       * @example DateTime.local(2014, 12, 31).weekYear //=> 2015
       * @type {number}
       */

    }, {
      key: 'weekYear',
      get: function get() {
        return this.isValid ? possiblyCachedWeekData(this).weekYear : NaN;
      },
      /**
       * Get the week number of the week year (1-52ish).
       * @see https://en.wikipedia.org/wiki/ISO_week_date
       * @example DateTime.local(2017, 5, 25).weekNumber //=> 21
       * @type {number}
       */

    }, {
      key: 'weekNumber',
      get: function get() {
        return this.isValid ? possiblyCachedWeekData(this).weekNumber : NaN;
      },
      /**
       * Get the day of the week.
       * 1 is Monday and 7 is Sunday
       * @see https://en.wikipedia.org/wiki/ISO_week_date
       * @example DateTime.local(2014, 11, 31).weekday //=> 4
       * @type {number}
       */

    }, {
      key: 'weekday',
      get: function get() {
        return this.isValid ? possiblyCachedWeekData(this).weekday : NaN;
      },
      /**
       * Get the ordinal (meaning the day of the year)
       * @example DateTime.local(2017, 5, 25).ordinal //=> 145
       * @type {number|DateTime}
       */

    }, {
      key: 'ordinal',
      get: function get() {
        return this.isValid ? gregorianToOrdinal(this.c).ordinal : NaN;
      },
      /**
       * Get the human readable short month name, such as 'Oct'.
       * Defaults to the system's locale if no locale has been specified
       * @example DateTime.local(2017, 10, 30).monthShort //=> Oct
       * @type {string}
       */

    }, {
      key: 'monthShort',
      get: function get() {
        return this.isValid ? Info.months('short', {
          locObj: this.loc,
        })[this.month - 1] : null;
      },
      /**
       * Get the human readable long month name, such as 'October'.
       * Defaults to the system's locale if no locale has been specified
       * @example DateTime.local(2017, 10, 30).monthLong //=> October
       * @type {string}
       */

    }, {
      key: 'monthLong',
      get: function get() {
        return this.isValid ? Info.months('long', {
          locObj: this.loc,
        })[this.month - 1] : null;
      },
      /**
       * Get the human readable short weekday, such as 'Mon'.
       * Defaults to the system's locale if no locale has been specified
       * @example DateTime.local(2017, 10, 30).weekdayShort //=> Mon
       * @type {string}
       */

    }, {
      key: 'weekdayShort',
      get: function get() {
        return this.isValid ? Info.weekdays('short', {
          locObj: this.loc,
        })[this.weekday - 1] : null;
      },
      /**
       * Get the human readable long weekday, such as 'Monday'.
       * Defaults to the system's locale if no locale has been specified
       * @example DateTime.local(2017, 10, 30).weekdayLong //=> Monday
       * @type {string}
       */

    }, {
      key: 'weekdayLong',
      get: function get() {
        return this.isValid ? Info.weekdays('long', {
          locObj: this.loc,
        })[this.weekday - 1] : null;
      },
      /**
       * Get the UTC offset of this DateTime in minutes
       * @example DateTime.now().offset //=> -240
       * @example DateTime.utc().offset //=> 0
       * @type {number}
       */

    }, {
      key: 'offset',
      get: function get() {
        return this.isValid ? +this.o : NaN;
      },
      /**
       * Get the short human name for the zone's current offset, for example "EST" or "EDT".
       * Defaults to the system's locale if no locale has been specified
       * @type {string}
       */

    }, {
      key: 'offsetNameShort',
      get: function get() {
        if (this.isValid) {
          return this.zone.offsetName(this.ts, {
            format: 'short',
            locale: this.locale,
          });
        }
        return null;
      },
      /**
       * Get the long human name for the zone's current offset, for example "Eastern Standard Time" or "Eastern Daylight Time".
       * Defaults to the system's locale if no locale has been specified
       * @type {string}
       */

    }, {
      key: 'offsetNameLong',
      get: function get() {
        if (this.isValid) {
          return this.zone.offsetName(this.ts, {
            format: 'long',
            locale: this.locale,
          });
        }
        return null;
      },
      /**
       * Get whether this zone's offset ever changes, as in a DST.
       * @type {boolean}
       */

    }, {
      key: 'isOffsetFixed',
      get: function get() {
        return this.isValid ? this.zone.isUniversal : null;
      },
      /**
       * Get whether the DateTime is in a DST.
       * @type {boolean}
       */

    }, {
      key: 'isInDST',
      get: function get() {
        if (this.isOffsetFixed) {
          return false;
        }
        return this.offset > this.set({
          month: 1,
        }).offset || this.offset > this.set({
          month: 5,
        }).offset;
      },
      /**
       * Returns true if this DateTime is in a leap year, false otherwise
       * @example DateTime.local(2016).isInLeapYear //=> true
       * @example DateTime.local(2013).isInLeapYear //=> false
       * @type {boolean}
       */

    }, {
      key: 'isInLeapYear',
      get: function get() {
        return isLeapYear(this.year);
      },
      /**
       * Returns the number of days in this DateTime's month
       * @example DateTime.local(2016, 2).daysInMonth //=> 29
       * @example DateTime.local(2016, 3).daysInMonth //=> 31
       * @type {number}
       */

    }, {
      key: 'daysInMonth',
      get: function get() {
        return daysInMonth(this.year, this.month);
      },
      /**
       * Returns the number of days in this DateTime's year
       * @example DateTime.local(2016).daysInYear //=> 366
       * @example DateTime.local(2013).daysInYear //=> 365
       * @type {number}
       */

    }, {
      key: 'daysInYear',
      get: function get() {
        return this.isValid ? daysInYear(this.year) : NaN;
      },
      /**
       * Returns the number of weeks in this DateTime's year
       * @see https://en.wikipedia.org/wiki/ISO_week_date
       * @example DateTime.local(2004).weeksInWeekYear //=> 53
       * @example DateTime.local(2013).weeksInWeekYear //=> 52
       * @type {number}
       */

    }, {
      key: 'weeksInWeekYear',
      get: function get() {
        return this.isValid ? weeksInWeekYear(this.weekYear) : NaN;
      },
    }], [{
      key: 'DATE_SHORT',
      get: function get() {
        return DATE_SHORT;
      },
      /**
       * {@link DateTime#toLocaleString} format like 'Oct 14, 1983'
       * @type {Object}
       */

    }, {
      key: 'DATE_MED',
      get: function get() {
        return DATE_MED;
      },
      /**
       * {@link DateTime#toLocaleString} format like 'Fri, Oct 14, 1983'
       * @type {Object}
       */

    }, {
      key: 'DATE_MED_WITH_WEEKDAY',
      get: function get() {
        return DATE_MED_WITH_WEEKDAY;
      },
      /**
       * {@link DateTime#toLocaleString} format like 'October 14, 1983'
       * @type {Object}
       */

    }, {
      key: 'DATE_FULL',
      get: function get() {
        return DATE_FULL;
      },
      /**
       * {@link DateTime#toLocaleString} format like 'Tuesday, October 14, 1983'
       * @type {Object}
       */

    }, {
      key: 'DATE_HUGE',
      get: function get() {
        return DATE_HUGE;
      },
      /**
       * {@link DateTime#toLocaleString} format like '09:30 AM'. Only 12-hour if the locale is.
       * @type {Object}
       */

    }, {
      key: 'TIME_SIMPLE',
      get: function get() {
        return TIME_SIMPLE;
      },
      /**
       * {@link DateTime#toLocaleString} format like '09:30:23 AM'. Only 12-hour if the locale is.
       * @type {Object}
       */

    }, {
      key: 'TIME_WITH_SECONDS',
      get: function get() {
        return TIME_WITH_SECONDS;
      },
      /**
       * {@link DateTime#toLocaleString} format like '09:30:23 AM EDT'. Only 12-hour if the locale is.
       * @type {Object}
       */

    }, {
      key: 'TIME_WITH_SHORT_OFFSET',
      get: function get() {
        return TIME_WITH_SHORT_OFFSET;
      },
      /**
       * {@link DateTime#toLocaleString} format like '09:30:23 AM Eastern Daylight Time'. Only 12-hour if the locale is.
       * @type {Object}
       */

    }, {
      key: 'TIME_WITH_LONG_OFFSET',
      get: function get() {
        return TIME_WITH_LONG_OFFSET;
      },
      /**
       * {@link DateTime#toLocaleString} format like '09:30', always 24-hour.
       * @type {Object}
       */

    }, {
      key: 'TIME_24_SIMPLE',
      get: function get() {
        return TIME_24_SIMPLE;
      },
      /**
       * {@link DateTime#toLocaleString} format like '09:30:23', always 24-hour.
       * @type {Object}
       */

    }, {
      key: 'TIME_24_WITH_SECONDS',
      get: function get() {
        return TIME_24_WITH_SECONDS;
      },
      /**
       * {@link DateTime#toLocaleString} format like '09:30:23 EDT', always 24-hour.
       * @type {Object}
       */

    }, {
      key: 'TIME_24_WITH_SHORT_OFFSET',
      get: function get() {
        return TIME_24_WITH_SHORT_OFFSET;
      },
      /**
       * {@link DateTime#toLocaleString} format like '09:30:23 Eastern Daylight Time', always 24-hour.
       * @type {Object}
       */

    }, {
      key: 'TIME_24_WITH_LONG_OFFSET',
      get: function get() {
        return TIME_24_WITH_LONG_OFFSET;
      },
      /**
       * {@link DateTime#toLocaleString} format like '10/14/1983, 9:30 AM'. Only 12-hour if the locale is.
       * @type {Object}
       */

    }, {
      key: 'DATETIME_SHORT',
      get: function get() {
        return DATETIME_SHORT;
      },
      /**
       * {@link DateTime#toLocaleString} format like '10/14/1983, 9:30:33 AM'. Only 12-hour if the locale is.
       * @type {Object}
       */

    }, {
      key: 'DATETIME_SHORT_WITH_SECONDS',
      get: function get() {
        return DATETIME_SHORT_WITH_SECONDS;
      },
      /**
       * {@link DateTime#toLocaleString} format like 'Oct 14, 1983, 9:30 AM'. Only 12-hour if the locale is.
       * @type {Object}
       */

    }, {
      key: 'DATETIME_MED',
      get: function get() {
        return DATETIME_MED;
      },
      /**
       * {@link DateTime#toLocaleString} format like 'Oct 14, 1983, 9:30:33 AM'. Only 12-hour if the locale is.
       * @type {Object}
       */

    }, {
      key: 'DATETIME_MED_WITH_SECONDS',
      get: function get() {
        return DATETIME_MED_WITH_SECONDS;
      },
      /**
       * {@link DateTime#toLocaleString} format like 'Fri, 14 Oct 1983, 9:30 AM'. Only 12-hour if the locale is.
       * @type {Object}
       */

    }, {
      key: 'DATETIME_MED_WITH_WEEKDAY',
      get: function get() {
        return DATETIME_MED_WITH_WEEKDAY;
      },
      /**
       * {@link DateTime#toLocaleString} format like 'October 14, 1983, 9:30 AM EDT'. Only 12-hour if the locale is.
       * @type {Object}
       */

    }, {
      key: 'DATETIME_FULL',
      get: function get() {
        return DATETIME_FULL;
      },
      /**
       * {@link DateTime#toLocaleString} format like 'October 14, 1983, 9:30:33 AM EDT'. Only 12-hour if the locale is.
       * @type {Object}
       */

    }, {
      key: 'DATETIME_FULL_WITH_SECONDS',
      get: function get() {
        return DATETIME_FULL_WITH_SECONDS;
      },
      /**
       * {@link DateTime#toLocaleString} format like 'Friday, October 14, 1983, 9:30 AM Eastern Daylight Time'. Only 12-hour if the locale is.
       * @type {Object}
       */

    }, {
      key: 'DATETIME_HUGE',
      get: function get() {
        return DATETIME_HUGE;
      },
      /**
       * {@link DateTime#toLocaleString} format like 'Friday, October 14, 1983, 9:30:33 AM Eastern Daylight Time'. Only 12-hour if the locale is.
       * @type {Object}
       */

    }, {
      key: 'DATETIME_HUGE_WITH_SECONDS',
      get: function get() {
        return DATETIME_HUGE_WITH_SECONDS;
      },
    }]);

    return DateTime;
  }());
  function friendlyDateTime(dateTimeish) {
    if (DateTime.isDateTime(dateTimeish)) {
      return dateTimeish;
    } if (dateTimeish && dateTimeish.valueOf && isNumber(dateTimeish.valueOf())) {
      return DateTime.fromJSDate(dateTimeish);
    } if (dateTimeish && typeof dateTimeish === 'object') {
      return DateTime.fromObject(dateTimeish);
    }
    throw new InvalidArgumentError(`Unknown datetime argument: ${dateTimeish}, of type ${typeof dateTimeish}`);
  }

  const VERSION = '2.1.1';

  exports.DateTime = DateTime;
  exports.Duration = Duration;
  exports.FixedOffsetZone = FixedOffsetZone;
  exports.IANAZone = IANAZone;
  exports.Info = Info;
  exports.Interval = Interval;
  exports.InvalidZone = InvalidZone;
  exports.Settings = Settings;
  exports.SystemZone = SystemZone;
  exports.VERSION = VERSION;
  exports.Zone = Zone;

  Object.defineProperty(exports, '__esModule', { value: true });

  return exports;
}({}));
// # sourceMappingURL=luxon.js.map
/*eslint-disable */