Measures, converts and writes time using different units. Includes timers and stopwatches with nanosecond precision.

Coming soon (version 2)

• 🏗 Built from scratch
• 👀 Simpler codebase
• 📚 Improved documentation
• ⏳ 101 units of time
• ⚡ Much faster than v1

Features

• Encapsulated time objects
• 71 time units available for conversion (from the Planck time to the yobisecond)
• Write and countdown times using symbols or verbose
• Internationalization
• Timers and stopwatches with nanosecond precision (and the minimum possible overhead)

Summary

• Installation
• Upgrading
• Usage
  • Time object
  • Writing time
  • Countdown
  • Translations
  • Timers
  • StopWatches
• Links
• License

Installation

This module can be installed with the node package manager of your choice:

1. Using NPM:

   # As a dependency:
   npm install timecount --save
   
   # As a development dependency:
   npm install timecount --save-dev

2. Using Yarn:

   # As a dependency:
   yarn add timecount
   
   # As a development dependency:
   yarn add timecount -D

Or download a release ready to be used on browsers:

• Latest Release: timecount-1.1.1
• All releases: https://github.com/pjbatista/timecount/releases

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Upgrading

Old versions of timecount (<= 0.1.3) are now obsolete.

The code is much less cluttered now, which means less overhead, which means more precise timers and stopwatches. Here is a simple example on how to upgrade:

1. EcmaScript 6

   // --- OLD ---
   import { Timer } from "timecount";
   
   const timer = new Timer({ autoStart: true });
   
   // Do your stuff...
   const time = timer.end();
   console.log(time.toSeconds());
   
   // --- NEW ---
   import { Timer } from "timecount/utils";
   
   const timer = new Timer(true);
   
   // Do your stuff...
   const time = timer.stop();
   console.log(time.to("second"));

2. Older EcmaScripts:

   // --- OLD ---
   var timecount = require("timecount");
   var timer = new timecount.Timer({ autoStart: true });
   
   // Do your stuff...
   var time = timer.end();
   console.log(time.toSeconds());
   
   // --- NEW ---
   var timecount = require("timecount");
   var timer = new timecount.utils.Timer(true);
   
   // Do your stuff...
   var time = timer.stop();
   console.log(time.to("second"));

Please consult the Full Upgrading Documentation for more information.

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Usage

Navigate: Time object | Writing time | Countdown | Translations | Timers | Stopwatches

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Time in timecount is internally based on nanoseconds, in order to better accomodate the precision on most orders of magnitude.

💡 A Planck time (smallest unit available) fits ~5x10³⁵ times inside a nanosecond and a nanosecond fits ~10³³ times inside a yobisecond (largest unit available).

After installing, it will be readily available to be imported:

• EcmaScript 6:

  import { Time, TimeWriter } from "timecount";
  import { Locale } from "timecount/localization";
  import { BasicTimer, StopWatch, Timer } from "timecount/utils";

• Older EcmaScripts:

  var timecount = require("timecount");
  
  // Sub-modules can be accessed directly through the main module
  timecount.Locale.set("pt");
  var stopwatch = new timecount.utils.StopWatch();

⚠ From now on, unless stated otherwise, examples on this document will assume the use of EcmaScript 6 or equivalent.

Time object

Usage | »Time object« | Writing time | Countdown | Translations | Timers | Stopwatches

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Time objects are nanosecond-based encapsulations of time values used throughout most of timecount.

More examples, including all time units available can be found at API Documentation: Time.

let time = new Time(1);
// Represents 1 nanosecond

time.value;    // 1 (number)
time.bigValue; // 1 (big decimal*)

Time constructors are versatile and accept numbers, strings (with numeric values), other time objects and *big decimals:

time = new Time(50);                              // 50 ns
time = new Time("5.425e+4");                      // 54250 ns
time = new Time(time.subtract(1, "microsecond")); // 53250 ns
time = new Time(new Decimal(150));                // 150 ns

// Times are always absolute (no negatives):

time = new Time(-50);        // 50 ns
time = new Time("-1.5e+10"); // 15009000000 ns

To convert to or from any of the available time units:

const time = Time.from(1, "second");
// 1 second = 1000000000 nanoseconds

time.to("minute");      // 0.01666666666666666667
time.to("second");      // 1
time.to("microsecond"); // 1000000
time.to({ factor: 2 }); // 500000000
time.value;             // 1000000000

Time.from(time.to("second"), "second"); // 1000000000

Basic arithmetics (including conversions):

let time = new Time(10);          // 10 ns
time.add(10);                     // 20 ns
time.add(10, "second");           // 1000000000010 ns
time.add(Time.from(1, "second")); // 1000000000010 ns

time = new Time(0.3);       // 0.3 ns
time.subtract(0.1);         // 0.2 ns
time.subtract("0.1");       // 0.2 ns
time.subtract(1, "second"); // 999999999.7 ns
time.subtract(new Time(1)); // 0.7 ns

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Writing time

Usage | Time object | »Writing time« | Countdown | Translations | Timers | Stopwatches

Time writers are able to synthesize strings describing time values using SI symbols, human-readable names, translations, different numeric notations and much more.

More examples, including all syntaxes of countdown and write are available at API Documentation: TimeWriter and all possible configurations at API Documentation: TimeWriterSettings.

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First, there are many "overloads" to the write method:

const timeWriter = new TimeWriter();
const time = new Time(1000000000);

timeWriter.write(time);               // "1000000000 ns"
timeWriter.write(time, "second");     // "1 s"
timeWriter.write(time, "millisecond"); // "1000 ms"

It can also convert/write time values directly:

timeWriter.write(1);                           // "1 ns"
timeWriter.write("1");                         // "1 ns"
timeWriter.write("1e+0");                      // "1 ns"
timeWriter.write(1, "second");                 // "1 s"
timeWriter.write(1e0, "second", "nanosecond"); // "1000000000 ns"
timeWriter.write(1, "second", "minute");       // "0.01666666666666666667 min"
timeWriter.write("100", "svedberg");           // "100 Sv"
timeWriter.write("1e2", "year", "year");       // "100 y"

And there also many ways to configure it:

let timeWriter = new TimeWriter({ verbose: true });

timeWriter.write(10, "second", "millisecond");
// "10000 milliseconds"

timeWriter.write("10", "second", "kibisecond", { numericNotation: "scientific" });
// "1.024e+7 kibiseconds"

timeWriter.write(10, "second", "nanosecond", { thousandsSeparator: "," });
// "1,000,000,000 ns"

timeWriter = new TimeWriter({
    decimalDigits: 4,
    termApproximately: "more or less",
    termInfinite: "eternal",
    termNaN: "inexistent",
    verbose: true
});

timeWriter.write(1, "second", "siderealSecond");
// "more or less 1.0027 sidereal seconds"

timeWriter.write(1, "second", "siderealSecond", { hideTimeUnit: true });
// "more or less 1.0027"

timeWriter.write(Infinity);
// "eternal nanoseconds"

timeWriter.write(NaN);
// "inexistent nanosecond"

// Method options override instance options:

timeWriter.write(1998, "year", { numericNotation: "roman" });
// "MCMXCVIII years"

timeWriter.write(1998.5, "year", { numericNotation: "roman-fractions" });
// "MCMXCVIIIS years"

There are many configurations available!. Oh, and in case it isn't clear by now, time units with no symbol will always be verbose:

timeWriter.write(new Time(1000000000), "shake");           // "100000000 shakes"
timeWriter.write(new Time(1000000000), "siderealSecond");  // "≈1.0027379155283682 sidereal seconds"

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Countdown

Usage | Time object | Writing time | »Countdown« | Translations | Timers | Stopwatches

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The countdown method of time writers expands upon their writing abilities, creating an interface to represent a time segmenting its remaining fractions in various orders of magnitude (time units).

This helps the expression of a more comprehensible information, i.e. help a human user understand a time length using common time unit divisions:

const time = Time.from(5623098, "second");

// What does 5623098 seconds reaaaally mean?

timeWriter.countdown(time, { verbose: true });
// 2 months, 4 days, 5 hours, 58 minutes, 18 seconds

By default, the segments are: "year", "month", "day", "hour", "minute", "second", "millisecond" or the constant TimeSegments.common.

// There are a few constants aimed at common operations
import { TimeSegments } from "timecount";

const time = Time.from(5623098, "second");

timeWriter.countdown(time);
// 2 m, 4 d, 5 h, 58 min, 18 s

timeWriter.countdown(time, TimeSegments.common);
// 2 m, 4 d, 5 h, 58 min, 18 s

timeWriter.countdown(time, { hideZeroSegments: false }, TimeSegments.common);
// 0 y, 2 m, 4 d, 5 h, 58 min, 18 s

timeWriter.countdown(time, TimeSegments.baseTen);
// 5 Ms, 623 Ks, 98 s

timeWriter.countdown(time, TimeSegments.binary);
// 5 Mis, 371 Kis, 314 s

timeWriter.countdown(Time.from(10, "planckTime").add(10, "yobisecond"), TimeSegments.extremes);
// 10 Yis, 10 tₚ

timeWriter.countdown(Time.from(10, "planckTime").add(10, "yobisecond"), { hideZeroSegments: false }, TimeSegments.extremes);
// 10 Yis, 0 ns, 10 tₚ

Also, there are some configurations specific to countdowns.

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Translations

Usage | Time object | Writing time | Countdown | »Translations« | Timers | Stopwatches

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For now, timecount is available in:

• 🇺🇸 English (US)
• 🇧🇷 Portuguese (Brazil)
• 🇵🇹 Portuguese (Portugal)
• 🇲🇽 Spanish (Mexico)
• 🇪🇸 Spanish (Spain)

To translate the output of time writers, import the Locale class from "localization". It is a static class able to load settings from translation files.

import { TimeWriter } from "timecount";
import { Locale } from "timecount/localization";

const timeWriter = new TimeWriter({ verbose: true });

timeWriter.write(10.5, "biennium");
// "10.5 biennia"

timeWriter.write(Infinity, "tropicalYear");
// "approximately infinite tropical years"

// Changing the language to Portuguese, without setting the region
// Timecount will choose the most populated region variation (in this case Brazilian Portuguese)
Locale.set("pt");

timeWriter.write(10.5, "biennium");
// "10,5 biênios"

timeWriter.write(Infinity, "tropicalYear");
// "aproximadamente infinitos anos tropicais"

// Changing the language to a regionalized Portuguese
// In this case, Portuguese (Portugal)
Locale.set("pt-pt");

timeWriter.write(10.5, "biennium");
// "10,5 biénios"

timeWriter.write(Infinity, "tropicalYear");
// "cerca de infinitos anos tropicais"

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Timecount needs your help! Please contribute with a translation: see Contributing: Translating.

Timers

Usage | Time object | Writing time | Countdown | Translations | »Timers« | Stopwatches

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These objects were the main focus of previous versions of timecount, however now they are part of the "timecount/utils" module.

There are the basic timers — capable of counting time during runtime...

const timer = new BasicTimer();

timer.start();

// [...] Operation that costs 100 milliseconds

const totalTime = timer.stop();

totalTime.to("millisecond");
// 101.0200193704

...and timers which do everything a basic timer does plus pausing.

// True can be passed to any type of timer to auto-start
const timer = new Timer(true);

// [...] Operation that costs ~1.5 seconds (total 1.5 s)

timer.pause();

// [...] Another operation that costs ~2 seconds (not counted)

timer.resume();

// [...] Another operation that costs ~2.5 seconds (total 4 s)

const totalTime = timer.stop();

totalTime.value;
// 4006232032

totalTime.to("second");
// 4.006232032

For more examples, consult the API Documentation: timer examples.

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StopWatches

Usage | Time object | Writing time | Countdown | Translations | Timers | »Stopwatches«

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Stopwatches do everything a timer do plus segment time (creating what is called a "lap").

import { StopWatch } from "timecount/utils";

// Stopwatches can also be auto-started
const stopwatch = new StopWatch(true);

for (const iterationObject of iterator) {

    // [...] Do something that takes ~1.2 ms

    const iterationTime = stopwatch.endLap();

    iterationTime.to("millisecond");
    // 1.234058872109
}

// Considering a total of 8 "laps":
const totalProcessingTime = stopwatch.stop();

totalProcessingTime.to("millisecond");
// 10.09183728197809584

For more examples, consult the API Documentation: stopwatch examples.

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Links

• Contributing / Translating
• List of Contributors
• Project Changelog
• API Documentation

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License

Copyright © 2017-2018 Pedro José Batista

MIT License (see LICENSE for more information).