Movatterモバイル変換


[0]ホーム

URL:


  1. Web
  2. JavaScript
  3. Reference
  4. Standard built-in objects
  5. Date
  6. getUTCDay()

Date.prototype.getUTCDay()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

ThegetUTCDay() method ofDate instances returns the day of the week for this date according to universal time, where 0 represents Sunday.

Try it

const date1 = new Date("August 19, 1975 23:15:30 GMT+11:00");const date2 = new Date("August 19, 1975 23:15:30 GMT-11:00");// Tuesdayconsole.log(date1.getUTCDay());// Expected output: 2// Wednesdayconsole.log(date2.getUTCDay());// Expected output: 3

Syntax

js
getUTCDay()

Parameters

None.

Return value

An integer corresponding to the day of the week for the given date according to universal time: 0 for Sunday, 1 for Monday, 2 for Tuesday, and so on. ReturnsNaN if the date isinvalid.

Examples

Using getUTCDay()

The following example assigns the weekday portion of the current date to the variableweekday.

js
const today = new Date();const weekday = today.getUTCDay();

Specifications

Specification
ECMAScript® 2026 Language Specification
# sec-date.prototype.getutcday

Browser compatibility

See also

Help improve MDN

Learn how to contribute

This page was last modified on byMDN contributors.


[8]ページ先頭

©2009-2026 Movatter.jp