Chrome not recognizing 24:00:00 while Firefox does

Question

The following code outputs outputs NaN in Chrome while Firefox generates 1247547600000.

var str = "2009/07/13 24:00:00-0500";
document.write(Date.parse(str));

See this fiddle.

How to solve this? Thank you!

EDIT: I've got the data from another company. I cannot change the data it generates. So What are the suggestions here?

The data generated:

{"day":"2009-07-13", "work":["11:16:35-12:03:12", "12:32:48-13:26:28", "13:39:09-13:39:12", "13:41:03-13:41:05", "14:18:09-24:00:00"]},
{"day":"2009-07-14", "work":["00:00:00-07:22:25", "07:22:25-07:22:28", "10:10:04-10:10:31", "10:10:32-10:15:33", "10:18:07-10:21:19", "11:04:49-11:06:15", "11:12:50-11:19:05", "11:19:11-11:19:19", "11:45:50-11:51:42", "11:51:43-11:53:55", "14:03:13-14:13:04", "14:23:55-14:31:28", "14:31:28-14:38:00", "14:38:00-14:49:04", "16:34:56-16:44:33", "16:46:37-16:48:10", "16:48:11-24:00:00"]}

Answer 1

Just had this problem and researched it.

According to Wikipedia: (see http://en.wikipedia.org/wiki/ISO_8601 )

Midnight is a special case and can be referred to as both "00:00" and "24:00". The notation "00:00" is used at the beginning of a calendar day and is the more frequently used. At the end of a day use "24:00". Note that "2007-04-05T24:00" is the same instant as "2007-04-06T00:00" (see Combined date and time representations below).

So it seems Chrome is wrong.

Answer 2

You are asking the browser to parse an invalid time. 24:00 isn't valid. You probably mean 0:00 of the next day. Chrome is correct in rejecting it. Firefox is simply more forgiving.

Consider that there are 24 hours in the day. If the first hour is 00, then the last hour is 23.