On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Bun version 1.0.0 on 2023-09-08
In Chrome version 76 on 2019-07-30
In Chrome Android version 76 on 2019-07-30
In Deno version 1.8 on 2021-03-02
In Edge version 79 on 2020-01-15
In Firefox version 91 on 2021-08-10
In Firefox for Android version 91 on 2021-08-10
Not in Internet Explorer
In Node.js version 12.9.0 on 2019-08-20 Note: Before version 13.0.0, only the locale data for en-US is available by default. See the DateTimeFormat() constructor for more details.
In Quest Browser version 7.0 on undefined
In Opera version 63 on 2019-08-20
In Opera Android version 54 on 2019-10-18
In Safari version 14.1 on 2021-04-26
In Safari on iOS version 14.5 on 2021-04-26
In Samsung Internet version 12.0 on 2020-06-19
In WebView Android version 76 on 2019-07-30
In WebView on iOS version 14.5 on 2021-04-26