UTC timestamp to time

        ///  <summary> 
        /// Convert UTC time to DateTime time
         ///  </summary> 
        ///  <returns></returns> 
        private DateTime ChangeUTCToDateTime( double utc)
        {
            DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));

            startTime = startTime.AddSeconds(utc);
            startTime = startTime.AddHours(8);
            return startTime;
        }