JavaScript setDate() Method
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JavaScript setDate() Method

❮ JavaScript Date Object

Example

Set the day of the month:

var d = new Date();
d.setDate(15);
Try it Yourself »

More "Try it Yourself" examples below.

Definition and Usage

The setDate() method sets the day of the month to the date object.

Browser Support

Method
setDate() Yes Yes Yes Yes Yes

Syntax

Date.setDate(day)

Parameter Values

Parameter Description
day Required. An integer representing the day of a month.

Expected values are 1-31, but other values are allowed:

  • 0 will result in the last day of the previous month
  • -1 will result in the day before the last day of the previous month

If the month has 31 days:

  • 32 will result in the first day of the next month

If the month has 30 days:

  • 32 will result in the second day of the next month

Technical Details

Return Value: A Number, representing the number of milliseconds between the date object and midnight January 1 1970
JavaScript Version: ECMAScript 1

More Examples

Example

Set the day of the month to be the last day of the previous month:

var d = new Date();
d.setDate(0);
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Example

Set the day of the month, to a specified date:

var d = new Date("July 21, 1983 01:15:00");
d.setDate(15);
Try it Yourself »
❮ JavaScript Date Object