JavaScript Date parse() Method
Example
Return the number of milliseconds between January 1, 1970 and March 21, 2012:
var d = Date.parse("March 21, 2012");
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More "Try it Yourself" examples below.
Definition and Usage
The parse() method parses a date string and returns the number of milliseconds between the date string and midnight of January 1, 1970.
Browser Support
| Method | |||||
|---|---|---|---|---|---|
| parse() | Yes | Yes | Yes | Yes | Yes |
Syntax
Date.parse(datestring)
Parameter Values
| Parameter | Description |
|---|---|
| datestring | Required. A string representing a date |
Technical Details
| Return Value: | A Number, representing the number of milliseconds between the specified date-time and midnight January 1, 1970 |
|---|---|
| JavaScript Version: | ECMAScript 1 |
More Examples
Example
Calculate the number of years between January 1, 1970 to March 21, 2012:
var d = Date.parse("March 21, 2012");
var minutes = 1000 * 60;
var hours = minutes * 60;
var days = hours * 24;
var years = days * 365;
var y = Math.round(d / years);
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Related Pages
JavaScript Tutorial: JavaScript Dates
JavaScript Tutorial: JavaScript Date Formats
❮ JavaScript Date Object
