javascript - Firefox new Date() from string constructs time in local time zone - Stack Overflow

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I am trying to create a date object from a string. I get date in ISO format except milliseconds part like "2012-01-30T16:23:12"

Results differ when I run following code in IE, Chrome and Firefox (Link to Fiddle)

currentDate = "2012-01-30T16:23:12";
var date = new Date(currentDate);
alert(date);

IE and Chrome considers the string as UTC but firefox considers in local time zone.

Is there any generic way to get around it except for checking user agent everywhere?

I am trying to create a date object from a string. I get date in ISO format except milliseconds part like "2012-01-30T16:23:12"

Results differ when I run following code in IE, Chrome and Firefox (Link to Fiddle)

currentDate = "2012-01-30T16:23:12";
var date = new Date(currentDate);
alert(date);

IE and Chrome considers the string as UTC but firefox considers in local time zone.

Is there any generic way to get around it except for checking user agent everywhere?

• javascript
• date
• timezone

Share Improve this question Follow edited Feb 27, 2013 at 10:52 Aaron Digulla 329k110110 gold badges623623 silver badges836836 bronze badges asked Jan 30, 2012 at 11:06 harshaharsha 96311 gold badge1313 silver badges2828 bronze badges 1

• possible duplicate of Annoying javascript timezone adjustment issue – Tomasz Nurkiewicz Commented Jan 30, 2012 at 11:18

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3 Answers 3

Sorted by: Reset to default 16

You could try appending the zero timezone offset +00:00 for UTC:

currentDate = "2012-01-30T16:23:12+00:00";

Does that help? (Sorry I can't test it without actually changing my timezone.)

Hm, possible workaround is to parse string and use methods.

setUTCDate()    
setUTCFullYear()
setUTCHours()

Probably, there is better solution

There is no guarantee that the input will be correctly parsed if in the present format. The Date.parse() routine is only required to parse strings in a particular format—parsing other formats is implementation-dependent. If you dare to rely on implementations satisfying the requirement, add data to conform to the specific format:

new Date(currentDate + '.000Z')

Alternatively, use a library that can parse data in the current format, e.g. jQuery or Globalize.js.

Similar considerations apply to writing dates. There is no guarantee of the output format if you use Date.toString(), either explicitly or as in alert(date). Even within a single computer, different browsers will use different localized formats.

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