<http://schema.org/dateCreated>
"2011-12-08T18:17:21Z"^^<http://schema.org/Date>
<http://mashable.com/2011/12/08/new-twitter-for-iphone-android/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Mashable+%28Mashable%29>