The toUTCString() method converts a date to a string, using the UTC time zone.

Based on rfc7231 and modified according to ecma-262 toUTCString, it can have negative values in the 2021 version



Return value

A string representing the given date using the UTC time zone.


The value returned by toUTCString() is a string in the form Www, dd Mmm yyyy hh:mm:ss GMT, Where:

Format String Description
Www Day of week, as three letters (e.g. Sun, Mon, ...)
dd Day of month, as two digits with leading zero if required
Mmm Month, as three letters (e.g. Jan, Feb, ...)
yyyy Year, as four or more digits with leading zeroes if required
hh Hour, as two digits with leading zero if required
mm Minute, as two digits with leading zero if required
ss Seconds, as two digits with leading zero if required

Prior to ECMAScript 2018, the format of the return value varied according to the platform. The most common return value was an RFC-1123 formatted date stamp, which is a slightly updated version of RFC-822 date stamps.


Using toUTCString()

let today = new Date('Wed, 14 Jun 2017 00:00:00 PDT');
let UTCstring = today.toUTCString(); // Wed, 14 Jun 2017 07:00:00 GMT


ECMAScript (ECMA-262)
The definition of 'Date.prototype.toUTCString' in that specification.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung InternetNode.js
toUTCStringChrome Full support 1Edge Full support 12Firefox Full support 1IE Full support 4Opera Full support 4Safari Full support 1WebView Android Full support 1Chrome Android Full support 18Firefox Android Full support 4Opera Android Full support 10.1Safari iOS Full support 1Samsung Internet Android Full support 1.0nodejs Full support 0.1.100


Full support  
Full support

See also