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---
title: Date.prototype.setUTCSeconds()
short-title: setUTCSeconds()
slug: Web/JavaScript/Reference/Global_Objects/Date/setUTCSeconds
page-type: javascript-instance-method
browser-compat: javascript.builtins.Date.setUTCSeconds
sidebar: jsref
---
The **`setUTCSeconds()`** method of {{jsxref("Date")}} instances changes the seconds and/or milliseconds for this date according to universal time.
{{InteractiveExample("JavaScript Demo: Date.prototype.setUTCSeconds()")}}
```js interactive-example
const date = new Date("December 31, 1975, 23:15:30 GMT+11:00");
console.log(date.getUTCSeconds());
// Expected output: 30
date.setUTCSeconds(39);
console.log(date.getUTCSeconds());
// Expected output: 39
```
## Syntax
```js-nolint
setUTCSeconds(secondsValue)
setUTCSeconds(secondsValue, msValue)
```
### Parameters
- `secondsValue`
- : An integer between 0 and 59 representing the seconds.
- `msValue` {{optional_inline}}
- : An integer between 0 and 999 representing the milliseconds.
### Return value
Changes the {{jsxref("Date")}} object in place, and returns its new [timestamp](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date#the_epoch_timestamps_and_invalid_date). If a parameter is `NaN` (or other values that get [coerced](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number#number_coercion) to `NaN`, such as `undefined`), the date is set to [Invalid Date](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date#the_epoch_timestamps_and_invalid_date) and `NaN` is returned.
## Description
If you do not specify the `msValue` parameter, the value returned from the
{{jsxref("Date/getUTCMilliseconds", "getUTCMilliseconds()")}} method is
used.
If a parameter you specify is outside of the expected range,
`setUTCSeconds()` attempts to update the date information in the
{{jsxref("Date")}} object accordingly. For example, if you use 100 for
`secondsValue`, the minutes stored in the {{jsxref("Date")}} object will be
incremented by 1, and 40 will be used for seconds.
## Examples
### Using setUTCSeconds()
```js
const theBigDay = new Date();
theBigDay.setUTCSeconds(20);
```
## Specifications
{{Specifications}}
## Browser compatibility
{{Compat}}
## See also
- {{jsxref("Date.prototype.getUTCSeconds()")}}
- {{jsxref("Date.prototype.setSeconds()")}}
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