         }                   
         
         /**
-         * Only populated in the case of a pushed message, timestamp in milliseconds since epoch of 
-         * when the client that caused a push message sent its message.
-         * 
-         * @return Timestamp in milliseconds since epoch
+         * The timestamp, in milliseconds since the start of the Unix epoch on 
+         * January 1, 1970, 00:00:00 GMT, to when the client that caused a push message sent its message.
+         * Only populated in the case of a pushed message, but not for an acknowledge message.
          */             
         public function get originatingMessageSentTime():Number
         {

        }       
        
        /**
         * Timestamp in milliseconds since epoch of when the client received response message from
         * the server
         * 
         * @return Timestamp in milliseconds since epoch
         */         
        public function get clientReceiveTime():Number
        {

        }                           
        
        /**
         * Time, in milliseconds, from when the originating client sent a message 
         * and the time that the receiving client received the pushed message. 
         * Note that this value is only relevant if the two clients have synchronized clocks.
         * Only populated in the case of a pushed message, but not for an acknowledge message,
         */             
        public function get totalPushTime():Number
        {           
