1 DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));2                                     DateTime dtNow = DateTime.Parse(DateTime.Now.ToString());3                                     TimeSpan toNow = dtNow.Subtract(dtStart);4                                     string timeStamp = toNow.Ticks.ToString();5                                     timeStamp = timeStamp.Substring(0, timeStamp.Length - 7);