--- /dev/null
+if(!dojo._hasResource["dojox.cometd.timestamp"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dojox.cometd.timestamp"] = true;
+dojo.provide("dojox.cometd.timestamp");
+dojo.require("dojox.cometd");
+
+// A cometd extension that adds a timestamp to every message
+dojox.cometd._extendOutList.push(function(msg){msg.timestamp=new Date().toUTCString();return msg});
+
+}