C# UTP时间转换

 1  protected static readonly DateTime unixTPStart =
 2                   TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
 3            public static long toUTP(DateTime dt)
 4            {
 5                TimeSpan toNow = dt.Subtract(unixTPStart);
 6                return (long)Math.Round(toNow.TotalSeconds);
 7            }
 8            public static DateTime fromUTP(long tp)
 9            {
10                return unixTPStart.Add(new TimeSpan(tp * 10000000));
11            }
12