jQuery timeago plugin not working in Safari

Question

I am using jQuery timeago plugin, and it is working in Chrome and Firefox but not in Safari. The usage is pretty simple as given on the website.

 $(document).ready(function() {
      jQuery("abbr.timeago").timeago();
    });

<abbr class="timeago" title="{{ISO8601_TIME timeStamp}}">{{COMMENT_DATE_TIME timeStamp}}</abbr>

The title and the date in the <abbr> tags is the iso timestamp. It works as expected in Chrome and Firefox but simply prints out the timestamp in Safari (eg 2012-11-28 19:16:49).

Can anyone please help me out where the problem is?

EDIT In Chrome:

In Safari:

Answer 1

for utc string created from: newDate.toUTCString():

in Google Chrome browser, calling jQuery.timeago('Fri, 31 May 2013 10:37:16 GMT') produce output 'NaN years ago'. However, it is working fine in Firefox browse.

The best is to use newDate.toISOString() and it works in both browser.