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Intl.DateTimeFormat.prototype.formatRange()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨August 2021⁩.

The formatRange() method of Intl.DateTimeFormat instances formats a date range in the most concise way based on the locales and options provided when instantiating this Intl.DateTimeFormat object.

Try it

const options1 = {
  weekday: "long",
  year: "numeric",
  month: "long",
  day: "numeric",
};
const options2 = { year: "2-digit", month: "numeric", day: "numeric" };

const startDate = new Date(Date.UTC(2007, 0, 10, 10, 0, 0));
const endDate = new Date(Date.UTC(2008, 0, 10, 11, 0, 0));

const dateTimeFormat = new Intl.DateTimeFormat("en", options1);
console.log(dateTimeFormat.formatRange(startDate, endDate));
// Expected output: "Wednesday, January 10, 2007 – Thursday, January 10, 2008"

const dateTimeFormat2 = new Intl.DateTimeFormat("en", options2);
console.log(dateTimeFormat2.formatRange(startDate, endDate));
// Expected output: "1/10/07 – 1/10/08"

Syntax

formatRange(startDate, endDate)

Parameters

startDate: The start of the date range. Can be a Date or Temporal.PlainDateTime object. Additionally can be a Temporal.PlainTime, Temporal.PlainDate, Temporal.PlainYearMonth, or Temporal.PlainMonthDay object if the DateTimeFormat object was configured to print at least one relevant part of the date.

Note: A Temporal.ZonedDateTime object will always throw a TypeError; use Temporal.ZonedDateTime.prototype.toLocaleString() or convert it to a Temporal.PlainDateTime object instead.
endDate: The end of the date range. Must have the same type as startDate.

Return value

A string representing the given date range formatted according to the locale and formatting options of this Intl.DateTimeFormat object. If the start and end dates are equivalent at the precision of the output, the output will only contain a single date.

Examples

Basic formatRange usage

This method receives two Dates and formats the date range in the most concise way based on the locale and options provided when instantiating Intl.DateTimeFormat.

const date1 = new Date(Date.UTC(1906, 0, 10, 10, 0, 0)); // Wed, 10 Jan 1906 10:00:00 GMT
const date2 = new Date(Date.UTC(1906, 0, 10, 11, 0, 0)); // Wed, 10 Jan 1906 11:00:00 GMT
const date3 = new Date(Date.UTC(1906, 0, 20, 10, 0, 0)); // Sat, 20 Jan 1906 10:00:00 GMT

const fmt1 = new Intl.DateTimeFormat("en", {
  year: "2-digit",
  month: "numeric",
  day: "numeric",
  hour: "numeric",
  minute: "numeric",
});
console.log(fmt1.format(date1)); // '1/10/06, 10:00 AM'
console.log(fmt1.formatRange(date1, date2)); // '1/10/06, 10:00 – 11:00 AM'
console.log(fmt1.formatRange(date1, date3)); // '1/10/06, 10:00 AM – 1/20/07, 10:00 AM'

const fmt2 = new Intl.DateTimeFormat("en", {
  year: "numeric",
  month: "short",
  day: "numeric",
});
console.log(fmt2.format(date1)); // 'Jan 10, 1906'
console.log(fmt2.formatRange(date1, date2)); // 'Jan 10, 1906'
console.log(fmt2.formatRange(date1, date3)); // 'Jan 10 – 20, 1906'

Specifications

Specification
ECMAScript® 2026 Internationalization API Specification> # sec-intl.datetimeformat.prototype.formatRange>

Browser compatibility

	Desktop					Mobile							Server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	WebView on iOS	Bun	Deno	Node.js
`formatRange`	76	79	91	63	14.1	76	91	54	14.5	12.0	76	14.5	1.0.0	1.8	12.9.0 Before version 13.0.0, only the locale data for `en-US` is available by default. See the `DateTimeFormat()` constructor for more details.