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Date.parse()

Baseline Widely available

This feature is well established and works across many devices and browser versions. Its been available across browsers since 2015 7.

Date.parse () 1970 1 1 00:00:00 UTC NaN . ( : 2015-02-31).

ES5 Date.parse . . ( ).

In this article

Syntax

Direct call:

js
Date.parse(dateString);

Implicit call:

js
new Date(dateString);

Parameters

dateString

RFC2822 ISO 8601 ( )

Return value

1970 1 1 00:00:00 UTC . NaN .

Description

parse () ( : "Dec 25, 1995") 1970 1 1 00:00:00 UTC . setTime() Date .

parse () . RFC2822 / IETF (RFC2822 3.3) . "Mon, 25 Dec 1995 13:30:00 GMT". , "Mon, 25 Dec 1995 13:30:00 +0430"( 4 30 ) .

GMT UTC . RFC2822 3.3 .

. "2015-10-12 12:00:00" NaN ECMAScript , UTC .

ECMAScript 5 ISO-8601 format support

ISO 8601 . , "2011-10-10"( ) "2011-10-10T14 : 48 : 00"( ) . ISO 8601 UTC . ISO 8601 .

1970 1 1 00:00:00 UTC NaN .

parse () Date Date Date.parse () .

"March 7, 2014" parse () "2014-03-07" ISO UTC (ES5 ECMAScript 2015) . Date (UTC) ECMAScript . , .

ECMAScript . String . ISO Date.parse () NaN .

ECMA-262 ISO NaN ( :

js
// Non-ISO string with invalid date values
new Date("23/25/2014");

Firefox 30 2015 11 25 , Safari 7 . ISO NaN ES5 :

js
// ISO string with invalid values
new Date("2014-25-23").toISOString();
// returns "RangeError: invalid date" in all es5 compliant browsers

SpiderMonkey jsdate.cpp . "10 06 2014" ISO . .

js
new Date("10 06 2014");

2014 10 6 2014 6 10 . :

js
new Date("foo-bar 2014").toString();
// returns: "Invalid Date"

Date.parse("foo-bar 2014");
// returns: NaN

Examples

Using Date.parse()

IPOdate Date 1995 8 9 ( ) .

js
IPOdate.setTime(Date.parse("Aug 9, 1995"));

.

js
Date.parse("Aug 9, 1995");

ISO GMT-0300 807937200000 local.

js
Date.parse("Wed, 09 Aug 1995 00:00:00 GMT");

GMT (UTC) 807926400000 .

js
Date.parse("Wed, 09 Aug 1995 00:00:00");

ISO GMT-0300 807937200000 .

js
Date.parse("Thu, 01 Jan 1970 00:00:00 GMT");

0 . GMT (UTC) .

js
Date.parse("Thu, 01 Jan 1970 00:00:00");

ISO GMT-0400 14400000 .

js
Date.parse("Thu, 01 Jan 1970 00:00:00 GMT-0400");

14400000 . GMT (UTC) .

Specification
ECMAScript 2027 LanguageSpecification
# sec-date.parse

See also

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  2. Date
    1. Date()
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    1. Date.prototype.getDate()
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    41. Date.prototype.toLocaleTimeString()
    42. Date.prototype.toString()
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