Temporal.PlainDate.prototype.withCalendar()

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The withCalendar() method of Temporal.PlainDate instances returns a new Temporal.PlainDate object representing this date interpreted in the new calendar system. Because all Temporal objects are designed to be immutable, this method essentially functions as the setter for the date's calendarId property.

To replace the date component properties, use the with() method instead.

Syntax

withCalendar(calendar)

Parameters

calendar: A string that corresponds to the calendarId property.

Return value

A new Temporal.PlainDate object, representing the date specified by the original PlainDate, interpreted in the new calendar system.

Exceptions

TypeError: Thrown if calendar is not a string.
RangeError: Thrown if calendar is not a valid calendar identifier.

Examples

Using withCalendar()

const date = Temporal.PlainDate.from("2021-07-01");
const newDate = date.withCalendar("islamic");
console.log(newDate.toLocaleString("en-US", { calendar: "islamic" }));
// 11/21/1442 AH

Specifications

Specification
Temporal proposal # sec-temporal.plaindate.prototype.withcalendar

Browser compatibility

	Desktop					Mobile						Server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	Deno	Node.js
`withCalendar`	No	No	No	No	No	No	No	No	No	No	No	1.40	No