.valueOf()

Anonymous contributor's avatar
Anonymous contributor
Anonymous contributor's avatar
Anonymous contributor
Published Jul 22, 2021Updated May 31, 2023
Contribute to Docs

Returns the difference in milliseconds between the specified date and January 1, 1970 00:00:00 UTC.

Syntax

myDate.valueOf();

Example 1

Print the value of January, 1st, 1970 at 12:00:00 AM.

const date = new Date(1999, 00, 01, 0, 0, 0, 0);
console.log(date);
// Output: Fri Jan 01 1999 00:00:00 GMT-0800 (Pacific Standard Time)
// Note: Timezone may vary
console.log(date.valueOf());
// Output: 915177600000

Codebyte Example

The following is runnable, and demonstrates the use of the .valueOf() method.

Code
Output
Loading...

All contributors

Looking to contribute?

Learn JavaScript on Codecademy