Date.prototype.setUTCMonth()

monthValue

An integer between 0 and 11, representing the months January through December.

dayValue

Optional. An integer from 1 to 31, representing the day of the month.

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

If you do not specify the dayValue parameter, the value returned from the getUTCDate() method is used.

If a parameter you specify is outside of the expected range, setUTCMonth() attempts to update the date information in the Date object accordingly. For example, if you use 15 for monthValue, the year will be incremented by 1, and 3 will be used for month.

• Date.prototype.getUTCMonth()
• Date.prototype.setMonth()