JavaScript setMonth() Method
Example
Set the month to 4 (May):
var d = new Date();
d.setMonth(4);
The result of d will be:
Try it yourself »
More "Try it Yourself" examples below.
Definition and Usage
The setMonth() method sets the month of a date object.
Note: January is 0, February is 1, and so on.
This method can also be used to set the day of the month.
Browser Support
| Method | |||||
|---|---|---|---|---|---|
| setMonth() | Yes | Yes | Yes | Yes | Yes |
Syntax
Date.setMonth(month,day)
Parameter Values
| Parameter | Description |
|---|---|
| month | Required. An integer representing the month
Expected values are 0-11, but other values are allowed:
|
| day | Optional. An integer representing the day of month
Expected values are 1-31, but other values are allowed:
If the month has 31 days:
If the month has 30 days:
|
Technical Details
| Return Value: | A Number, representing the number of milliseconds between the date object and midnight January 1 1970 |
|---|---|
| JavaScript Version: | 1.0 |
More Examples
Example
Set the month to 4 (May) and the day to the 20th:
var d = new Date();
d.setMonth(4, 20);
The result of d will be:
Try it yourself »
Example
Set the date to be the last day of last month:
var d = new Date();
d.setMonth(d.getMonth(), 0);
The result of d will be:
Try it yourself »
JavaScript Date Object
