public TimeSpan SynchronizeLocalClock()
{
TimeSpan diff = MeasureSystemClockError();
DateTime corrected = DateTime.Now + diff;
NistClock.SetTimeLocal(corrected);
return(diff);
}
public TimeSpan MeasureSystemClockError()
{
TimeSpan roundTrip;
string daytimeString = QueryDaytimeString(out roundTrip);
double halfTripMilliseconds = roundTrip.TotalMilliseconds / 2.0;
TimeSpan halfTrip = new TimeSpan(0, 0, 0, 0, (int)halfTripMilliseconds);
DateTime nist = NistClock.ParseDaytimeProtocol(daytimeString) + halfTrip;
DateTime here = DateTime.Now.ToUniversalTime();
TimeSpan diff = (nist - here);
return(diff);
}