Temporal.PlainDate.prototype.toPlainDateTime()

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 toPlainDateTime() method of Temporal.PlainDate instances returns a new Temporal.PlainDateTime object representing this date and a supplied time in the same calendar system.

Syntax

js
toPlainDateTime()
toPlainDateTime(plainTime)

Parameters

plainTime Optional

A string, an object, or a Temporal.PlainTime instance representing the time component of the resulting PlainDateTime. It is converted to a Temporal.PlainTime object using the same algorithm as Temporal.PlainTime.from(). Defaults to "00:00:00".

Return value

A new Temporal.PlainDateTime object representing the date and time specified by this date and plainTime, interpreted in the calendar system of this date.

Examples

Using toPlainDateTime()

js
const date = Temporal.PlainDate.from("2021-07-01");
const dateTime = date.toPlainDateTime("12:34:56");
console.log(dateTime.toString()); // 2021-07-01T12:34:56

const midnight = date.toPlainDateTime();
console.log(midnight.toString()); // 2021-07-01T00:00:00

const date2 = Temporal.PlainDate.from("2021-07-01[u-ca=chinese]");
const dateTime2 = date2.toPlainDateTime("12:34:56");
console.log(dateTime2.toString()); // 2021-07-01T12:34:56[u-ca=chinese]

Specifications

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

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
toPlainDateTime
Experimental

Legend

Tip: you can click/tap on a cell for more information.

No support
No support
Experimental. Expect behavior to change in the future.
See implementation notes.
User must explicitly enable this feature.

See also