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⇱ JavaScript Date setMilliseconds() Method - GeeksforGeeks


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JavaScript Date setMilliseconds() Method

Last Updated : 11 Jul, 2025

The date.setMilliseconds() method is used to set milliseconds into a date object which is created using the date() constructor.

Syntax:

dateObj.setMilliseconds(milliseconds_Value);

Parameter: This method accepts a single parameter as mentioned above and described below:

  • milliseconds_Value: This parameter holds the value of millisecond which is used to set in the date() constructor.

Return Values:It returns the new i.e. updated millisecond which is set by the setMilliseconds() method.

Note: The DateObjis a valid Date object created using the Date() constructor in which we want to set the millisecond. The value of milliseconds is from 0 to 999.

Example 1: Below is the example of the Date setMilliseconds()method.

Output:

52

Example 2:If in the Date() constructor we do not give any millisecond, still setMilliseconds() method set a new millisecond which is given as its parameter.

Output:

51

Program 3:If nothing as a parameter is given in the Date() constructor, still setMilliseconds() method set milliseconds but a month, year, date, etc become current ones. Here 42 is the new milliseconds, 4 is the current month i.e. April, 1 is the current date and 2018 is the current year.

Output:

42
4
1
2018

Example 4:If the value of millisecond 1006 is given as the parameter of the setMilliseconds() method, It will set 6 as the millisecond because the millisecond range is from 0 to 999, and hence 👁 1006-1000=6
, here 1000 is subtracted because 0 to 999 is 1000.

Here 6 is the new millisecond and the second becomes 33 from 32 because the millisecond range is from 0 to 999 i.e, total 1000 and we set the new millisecond as 1006 which increases second by one to 33 from 32 and the millisecond becomes 6.

Output:

6
33

We have a complete list of Javascript Javascript Date methods, to check those please go through the Javascript Date Object Complete Reference article.

Supported Browsers: The browsers supported by the JavaScript Date setMilliseconds() method are listed below:

  • Google Chrome 1 and above
  • Edge 12 and above
  • Firefox 1 and above
  • Internet Explorer 4 and above
  • Opera 4 and above
  • Safari 1 and above
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