 <p>I ended up finding a solution at <a href="http://zetafleet.com/blog/javascript-dateparse-for-iso-8601" rel="nofollow">http://zetafleet.com/blog/javascript-dateparse-for-iso-8601</a>. It looks like the date is in a format called 'ISO 8601.' On earlier browsers (Safari 4, Chrome 4, IE 6-8), ISO 8601 is not supported, so Date.parse doesn't work. The code referenced from the linked blog post extends the current Date class to support ISO 8601.</p>