Last Updated : 23 Jul, 2025
The JavaScript Date setTime() Function is a built-in Function in Javascript that is used to get a date object by adding given milliseconds to the date 01/01/1970
Syntax:
date.setTime(milliseconds)
Parameters: setTime() Function takes parameters as follows.
Return Value: The setTime() Function returns milliseconds between January 1 1970 and the time you passed in the parameter.
Example 1: Adding 300000000000 milliseconds to 01/01/1970
JavaScript
<script>
// Initialization
let date = new Date();
// Execution
let output = date.setTime(300000000000);
// Display Output
console.log(`setTime() Output:`, output, date);
</script>
Output:
setTime() Output: 300000000000 Thu Jul 05 1979 10:50:00 GMT+0530 (India Standard Time)
Example 2: Subtracting 300000000000 milliseconds to 01/01/1970.
JavaScript
<script>
// Initialization
let date = new Date();
// Execution
let output = date.setTime(-300000000000);
// Display Output
console.log(`setTime() Output:`, output, date);
</script>
Output:
setTime() Output: -300000000000 Thu Jun 30 1960 00:10:00 GMT+0530 (India Standard Time)
We have a complete list of Javascript Date Objects, to check those please go through this Javascript Date Object Complete reference article.
Supported Browsers: The browsers supported by the JavaScript Date setTime() Function are listed below:
We have a Cheat Sheet on Javascript where we covered all the important topics of Javascript to check those please go through Javascript Cheat Sheet-A Basic guide to JavaScript.
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