Date.prototype.setUTCHours()
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.
The setUTCHours() method of Date instances changes the hours, minutes, seconds, and/or milliseconds for this date according to universal time.
Try it
const event = new Date("August 19, 1975 23:15:30 GMT-3:00");
console.log(event.toUTCString());
// Expected output: "Wed, 20 Aug 1975 02:15:30 GMT"
console.log(event.getUTCHours());
// Expected output: 2
event.setUTCHours(23);
console.log(event.toUTCString());
// Expected output: "Wed, 20 Aug 1975 23:15:30 GMT"
Syntax
setUTCHours(hoursValue)
setUTCHours(hoursValue, minutesValue)
setUTCHours(hoursValue, minutesValue, secondsValue)
setUTCHours(hoursValue, minutesValue, secondsValue, msValue)
Parameters
hoursValue-
An integer between 0 and 23 representing the hours.
minutesValueOptional-
An integer between 0 and 59 representing the minutes.
secondsValueOptional-
An integer between 0 and 59 representing the seconds. If you specify
secondsValue, you must also specifyminutesValue. msValueOptional-
An integer between 0 and 999 representing the milliseconds. If you specify
msValue, you must also specifyminutesValueandsecondsValue.
Return value
Changes the Date object in place, and returns its new timestamp. If a parameter is NaN (or other values that get coerced to NaN, such as undefined), the date is set to Invalid Date and NaN is returned.
Description
If you do not specify the minutesValue,
secondsValue, and msValue parameters,
the values returned from the getUTCMinutes(), getUTCSeconds(),
and getUTCMilliseconds() methods
are used.
If a parameter you specify is outside of the expected range, setUTCHours()
attempts to update the date information in the Date object accordingly.
For example, if you use 100 for secondsValue, the minutes will
be incremented by 1 (minutesValue + 1), and 40 will be used for seconds.
Examples
Using setUTCHours()
const theBigDay = new Date();
theBigDay.setUTCHours(8);
Specifications
| Specification |
|---|
| ECMAScript® 2026 Language Specification # sec-date.prototype.setutchours |