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JavaScript getTime() Method

Date Object Reference JavaScript Date Object

Definition and Usage

The getTime() method returns the number of milliseconds since midnight of January 1, 1970.

Syntax

dateObject.getTime()

Tips and Notes

Note: This method is always used in conjunction with a Date object.

Examples

Example 1

Get how many milliseconds since 1970/01/01:

<script type="text/javascript">

var d=new Date();
document.write(d.getTime() + " milliseconds since 1970/01/01");

</script>

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Example 2

Calculate the number of years since 1970/01/01:

<script type="text/javascript">

var minutes=1000*60;
var hours=minutes*60;
var days=hours*24;
var years=days*365;
var d=new Date();
var t=d.getTime();
var y=t/years;
document.write("It's been: " + y + " years since 1970/01/01!");

</script>

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Date Object Reference JavaScript Date Object

From http://www.w3schools.com (Copyright Refsnes Data)