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JS Reference

Overview

JavaScript

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constructor prototype toString() valueOf()
JS Date
constructor prototype getDate() getDay() getFullYear() getHours() getMilliseconds() getMinutes() getMonth() getSeconds() getTime() getTimezoneOffset() getUTCDate() getUTCDay() getUTCFullYear() getUTCHours() getUTCMilliseconds() getUTCMinutes() getUTCMonth() getUTCSeconds() now() parse() setDate() setFullYear() setHours() setMilliseconds() setMinutes() setMonth() setSeconds() setTime() setUTCDate() setUTCFullYear() setUTCHours() setUTCMilliseconds() setUTCMinutes() setUTCMonth() setUTCSeconds() toDateString() toISOString() toJSON() toLocaleDateString() toLocaleTimeString() toLocaleString() toString() toTimeString() toUTCString() UTC() valueOf()
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Other References

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JavaScript setFullYear() Method

❮ JavaScript Date Object

Example

Set the year to 2020:

var d = new Date();
d.setFullYear(2020);
Try it Yourself »

Definition and Usage

The setFullYear() method sets the year (four digits for dates between year 1000 and 9999) of the date object.

This method can also be used to set the month and day of month.

Browser Support

Method
setFullYear() Yes Yes Yes Yes Yes

Syntax

Date.setFullYear(year, month, day)

Parameter Values

Parameter Description
year Required. A value representing the year, negative values are allowed
month Optional. An integer representing the month

Expected values are 0-11, but other values are allowed:

  • -1 will result in the last month of the previous year
  • 12 will result in the first month of the next year
  • 13 will result in the second month of the next year
day Optional. An integer representing the day of 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 date to November 3, 2020:

var d = new Date();
d.setFullYear(2020, 10, 3);
Try it Yourself »

Example

Set the date to six months ago:

var d = new Date();
d.setFullYear(d.getFullYear(), d.getMonth() - 6);
Try it Yourself »
❮ JavaScript Date Object