javascript - Date issue in Firefox - Stack Overflow

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I want to parse date in my page to Javascript's Date.

So I have this in my page

<span>01-07-2012 01:04 PM</span>

And I have Javascript code that parses this value to date

var tagText = $(this).html();
var givenDate = new Date(tagText);
alert(givenDate);

And here is what I get in different browsers

IE:

Sat Jan 7 13:04:00 UTC+0400 2012

Chrome:

Sat Jan 07 2012 13:04:00 GMT +0400 (Caucasus Standard Time)

Firefox:

Invalid Date

Why Firefox doesn't recognize my date? What I must change to make it work with all major browsers?

Here is jsfiddle /

I want to parse date in my page to Javascript's Date.

So I have this in my page

<span>01-07-2012 01:04 PM</span>

And I have Javascript code that parses this value to date

var tagText = $(this).html();
var givenDate = new Date(tagText);
alert(givenDate);

And here is what I get in different browsers

IE:

Sat Jan 7 13:04:00 UTC+0400 2012

Chrome:

Sat Jan 07 2012 13:04:00 GMT +0400 (Caucasus Standard Time)

Firefox:

Invalid Date

Why Firefox doesn't recognize my date? What I must change to make it work with all major browsers?

Here is jsfiddle http://jsfiddle/mgER5/1/

• javascript
• firefox
• cross-browser

Share Improve this question Follow edited Jan 12, 2012 at 7:20 Chuck Norris asked Jan 12, 2012 at 7:08 Chuck NorrisChuck Norris 15.2k1515 gold badges9595 silver badges127127 bronze badges 7

• what version of firefox are you using? this works fine in the new version – redmoon7777 Commented Jan 12, 2012 at 7:14
• 9.0.1 ... I guess, it's the latest version. – Chuck Norris Commented Jan 12, 2012 at 7:15
• ah ok I have 8.0 I'll upgrade now and let you know – redmoon7777 Commented Jan 12, 2012 at 7:19
• I just tested it on 9.0.1 and it works. result: "Sat Jan 07 2012 13:04:00 GMT-0500 (Eastern Standard Time)" – redmoon7777 Commented Jan 12, 2012 at 7:27
• Do you test with this format? <span>01-07-2012 01:04 PM</span> – Chuck Norris Commented Jan 12, 2012 at 7:28

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4 Answers 4

Sorted by: Reset to default 9

try this:

var tagText = $(this).html();
tagText = tagText.replace(/-/g, '/');
var givenDate = new Date(tagText);
alert(givenDate);

As explained in the documentation the string you are passing to the constructor of the Date object should be:

String value representing a date. The string should be in a format recognized by the parse method (IETF-pliant RFC 1123 timestamps).

Basically it should represent an RFC822 or ISO 8601 date.

What I must change to make it work with all major browsers?

Write it in milliseconds.

If you really want full cross-browser support for any date format, you should take a look at moment.js. It allows you to be explicit about the input format. For example:

var m = moment('01-07-2012 01:04 PM', 'DD-MM-YYYY  hh:mm a');

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