A single tag used to indicate when an article should no longer appear in a site, particularly when the information is date sensitive (e.g., events like conferences, meetings and so forth). The tag is defined by expiration date values that are set under the More section of the Write admin-side panel.
Custom format date setting
<p>Expires: <txp:expires format="%b %d, %Y" /></p>
would result in:
<p>Expires: Sep 10, 2010</p>