<acme:date tz="GMT">EEE, dd/MMM/yyyy HH:mm:ss ZZZ</acme:date> ==> Tue, 06/Jan/2009 03:09:59 +0000
<acme:date tz="EST">EEE, dd-MMM-yyyy HH:mm:ss ZZZ</acme:date> ==> Mon, 05-Jan-2009 22:09:59 -0500