> For the complete documentation index, see [llms.txt](https://date.gitbook.io/dateall/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://date.gitbook.io/dateall/javascript/methods/date.setmilliseconds.md).
# Date.setMilliseconds()
Sets the milliseconds of a date object
The setMilliseconds() method sets the milliseconds for a specified date according to local time.
```javascript
var event = new Date('August 19, 1975 23:15:30');
console.log(event.getMilliseconds());
// expected output: 0
event.setMilliseconds(456);
console.log(event.getMilliseconds());
// expected output: 456
```
## Syntax
```javascript
dateObj.setMilliseconds(millisecondsValue)
```
#### Parameters
`millisecondsValue`A number between 0 and 999, representing the milliseconds.
**Return value**
The number of milliseconds between 1 January 1970 00:00:00 UTC and the updated date.
## Description
If you specify a number outside the expected range, the date information in the [`Date`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date)object is updated accordingly. For example, if you specify 1005, the number of seconds is incremented by 1, and 5 is used for the milliseconds.
## Examples
#### Using `setMilliseconds()`
```javascript
var theBigDay = new Date();
theBigDay.setMilliseconds(100);
```
## References
{% embed url="" %}
## Contributors to this page
Uros Durdevic