Date.prototype.setMilliseconds()

The setMilliseconds() method sets the milliseconds for a specified date according to local time.

dateObj.setMilliseconds(millisecondsValue)

millisecondsValue

A number between 0 and 999, representing the milliseconds.

The number of milliseconds between 1 January 1970 00:00:00 UTC and the updated date.

If you specify a number outside the expected range, the date information in the 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.

var theBigDay = new Date();
theBigDay.setMilliseconds(100);

• Date.prototype.getMilliseconds()
• Date.prototype.setUTCMilliseconds()