diff --git a/src/layout/Datepicker/DatePickerInput.tsx b/src/layout/Datepicker/DatePickerInput.tsx
index 888a6c14c..60b623fed 100644
--- a/src/layout/Datepicker/DatePickerInput.tsx
+++ b/src/layout/Datepicker/DatePickerInput.tsx
@@ -9,11 +9,11 @@ import { format, isValid } from 'date-fns';
 import { useLanguage } from 'src/features/language/useLanguage';
 import styles from 'src/layout/Datepicker/Calendar.module.css';
 import { getSaveFormattedDateString, strictParseFormat, strictParseISO } from 'src/utils/dateHelpers';
-import { getFormatDisplay, getFormatPattern } from 'src/utils/formatDateLocale';
+import { getFormatPattern } from 'src/utils/formatDateLocale';
 
 export interface DatePickerInputProps {
   id: string;
-  formatString: string;
+  datepickerFormat: string;
   timeStamp: boolean;
   value?: string;
   onValueChange?: (value: string) => void;
@@ -24,13 +24,12 @@ export interface DatePickerInputProps {
 
 export const DatePickerInput = forwardRef(
   (
-    { id, value, formatString, timeStamp, onValueChange, isDialogOpen, readOnly, onClick }: DatePickerInputProps,
+    { id, value, datepickerFormat, timeStamp, onValueChange, isDialogOpen, readOnly, onClick }: DatePickerInputProps,
     ref: RefObject<HTMLButtonElement>,
   ) => {
-    const formatDisplay = getFormatDisplay(formatString);
-    const formatPattern = getFormatPattern(formatDisplay);
+    const formatPattern = getFormatPattern(datepickerFormat);
     const dateValue = strictParseISO(value);
-    const formattedDateValue = dateValue ? format(dateValue, formatString) : value;
+    const formattedDateValue = dateValue ? format(dateValue, datepickerFormat) : value;
     const [inputValue, setInputValue] = useState(formattedDateValue ?? '');
 
     useEffect(() => {
@@ -39,7 +38,7 @@ export const DatePickerInput = forwardRef(
 
     const saveValue = (e: React.ChangeEvent<HTMLInputElement>) => {
       const stringValue = e.target.value;
-      const date = strictParseFormat(stringValue, formatString);
+      const date = strictParseFormat(stringValue, datepickerFormat);
       const valueToSave = getSaveFormattedDateString(date, timeStamp) ?? stringValue;
       onValueChange && onValueChange(valueToSave);
     };
@@ -48,7 +47,7 @@ export const DatePickerInput = forwardRef(
       const stringValue = e.target.value;
       setInputValue(stringValue);
       // If the date is valid, save immediately
-      if (isValid(strictParseFormat(stringValue, formatString))) {
+      if (stringValue.length == 0 || isValid(strictParseFormat(stringValue, datepickerFormat))) {
         saveValue(e);
       }
     };
@@ -65,7 +64,7 @@ export const DatePickerInput = forwardRef(
           type='text'
           id={id}
           value={inputValue}
-          placeholder={formatDisplay}
+          placeholder={datepickerFormat.toUpperCase()}
           onChange={handleChange}
           onBlur={saveValue}
           readOnly={readOnly}
diff --git a/src/layout/Datepicker/DatepickerComponent.tsx b/src/layout/Datepicker/DatepickerComponent.tsx
index 24ce08365..670858fc7 100644
--- a/src/layout/Datepicker/DatepickerComponent.tsx
+++ b/src/layout/Datepicker/DatepickerComponent.tsx
@@ -13,13 +13,8 @@ import { ComponentStructureWrapper } from 'src/layout/ComponentStructureWrapper'
 import styles from 'src/layout/Datepicker/Calendar.module.css';
 import { DatePickerCalendar } from 'src/layout/Datepicker/DatePickerCalendar';
 import { DatePickerInput } from 'src/layout/Datepicker/DatePickerInput';
-import {
-  getDateConstraint,
-  getDateFormat,
-  getLocale,
-  getSaveFormattedDateString,
-  strictParseISO,
-} from 'src/utils/dateHelpers';
+import { getDateConstraint, getDateFormat, getSaveFormattedDateString, strictParseISO } from 'src/utils/dateHelpers';
+import { getDatepickerFormat } from 'src/utils/formatDateLocale';
 import { useNodeItem } from 'src/utils/layout/useNodeItem';
 import type { PropsFromGenericComponent } from 'src/layout';
 
@@ -30,7 +25,6 @@ export type IDatepickerProps = PropsFromGenericComponent<'Datepicker'>;
 export function DatepickerComponent({ node }: IDatepickerProps) {
   const { langAsString } = useLanguage();
   const languageLocale = useCurrentLanguage();
-  const currentLocale = getLocale(languageLocale ?? 'nb');
   const { minDate, maxDate, format, timeStamp = true, readOnly, required, id, dataModelBindings } = useNodeItem(node);
 
   const [isDialogOpen, setIsDialogOpen] = useState(false);
@@ -38,7 +32,7 @@ export function DatepickerComponent({ node }: IDatepickerProps) {
 
   const calculatedMinDate = getDateConstraint(minDate, 'min');
   const calculatedMaxDate = getDateConstraint(maxDate, 'max');
-  const dateFormat = getDateFormat(format, languageLocale);
+  const dateFormat = getDatepickerFormat(getDateFormat(format, languageLocale));
   const isMobile = useIsMobile();
 
   const { setValue, formData } = useDataModelBindings(dataModelBindings);
@@ -111,7 +105,7 @@ export function DatepickerComponent({ node }: IDatepickerProps) {
               id={id}
               value={value}
               isDialogOpen={isMobile ? modalRef.current?.open : isDialogOpen}
-              formatString={dateFormat}
+              datepickerFormat={dateFormat}
               timeStamp={timeStamp}
               onValueChange={handleInputValueChange}
               onClick={() => (isMobile ? modalRef.current?.showModal() : setIsDialogOpen(!isDialogOpen))}
@@ -131,7 +125,7 @@ export function DatepickerComponent({ node }: IDatepickerProps) {
           )}
         </Grid>
         <span className={`${styles.formatText} no-visual-testing`}>
-          {langAsString('date_picker.format_text', [formatDate(new Date(), dateFormat, { locale: currentLocale })])}
+          {langAsString('date_picker.format_text', [formatDate(new Date(), dateFormat)])}
         </span>
       </div>
     </ComponentStructureWrapper>
diff --git a/src/layout/Datepicker/index.tsx b/src/layout/Datepicker/index.tsx
index ad1da6fd3..531f5e1d2 100644
--- a/src/layout/Datepicker/index.tsx
+++ b/src/layout/Datepicker/index.tsx
@@ -9,7 +9,7 @@ import { DatepickerComponent } from 'src/layout/Datepicker/DatepickerComponent';
 import { DatepickerSummary } from 'src/layout/Datepicker/DatepickerSummary';
 import { SummaryItemSimple } from 'src/layout/Summary/SummaryItemSimple';
 import { formatISOString, getDateConstraint, getDateFormat, strictParseISO } from 'src/utils/dateHelpers';
-import { getFormatDisplay } from 'src/utils/formatDateLocale';
+import { getDatepickerFormat } from 'src/utils/formatDateLocale';
 import type { LayoutValidationCtx } from 'src/features/devtools/layoutValidation/types';
 import type { DisplayDataProps } from 'src/features/displayData';
 import type { BaseValidation, ComponentValidation, ValidationDataSources } from 'src/features/validation';
@@ -88,13 +88,13 @@ export class Datepicker extends DatepickerDef implements ValidateComponent<'Date
       nodeDataSelector((picker) => picker(node)?.item?.format, [node]),
       currentLanguage,
     );
-    const formatDisplay = getFormatDisplay(format);
+    const datePickerFormat = getDatepickerFormat(format).toUpperCase();
 
     const validations: ComponentValidation[] = [];
     const date = strictParseISO(dataAsString);
     if (!date) {
       validations.push({
-        message: { key: 'date_picker.invalid_date_message', params: [formatDisplay] },
+        message: { key: 'date_picker.invalid_date_message', params: [datePickerFormat] },
         severity: 'error',
         source: FrontendValidationSource.Component,
         category: ValidationMask.Component,
diff --git a/src/utils/formatDateLocale.ts b/src/utils/formatDateLocale.ts
index a28da15c3..4087fa0fb 100644
--- a/src/utils/formatDateLocale.ts
+++ b/src/utils/formatDateLocale.ts
@@ -114,26 +114,29 @@ export function formatDateLocale(localeStr: string, date: Date, unicodeFormat?:
   }, '');
 }
 
-export function getFormatDisplay(unicodeFormat: string): string {
+/**
+ * This function will massage locale date formats to require a fixed number of characters so that a pattern-format can be used on the text input
+ */
+export function getDatepickerFormat(unicodeFormat: string): string {
   const tokens = unicodeFormat.split(UNICODE_TOKENS) as Token[];
   const separators: Separator[] = unicodeFormat.match(UNICODE_TOKENS) ?? [];
 
   return tokens.reduce((acc, token: Token, index) => {
     if (['y', 'yy', 'yyy', 'yyyy', 'u', 'uu', 'uuu', 'uuuu'].includes(token)) {
-      return `${acc}YYYY${separators?.[index] ?? ''}`;
+      return `${acc}yyyy${separators?.[index] ?? ''}`;
     }
     if (['M', 'MM', 'MMM', 'MMMM', 'MMMMM'].includes(token)) {
       return `${acc}MM${separators?.[index] ?? ''}`;
     }
     if (['d', 'dd'].includes(token)) {
-      return `${acc}DD${separators?.[index] ?? ''}`;
+      return `${acc}dd${separators?.[index] ?? ''}`;
     }
     return acc;
   }, '');
 }
 
-export function getFormatPattern(formatDisplay: string): string {
-  return formatDisplay.replaceAll(/D|M|Y/g, '#');
+export function getFormatPattern(datePickerFormat: string): string {
+  return datePickerFormat.replaceAll(/d|m|y/gi, '#');
 }
 
 function selectPartToUse(parts: Intl.DateTimeFormatPart[], token: Token) {