NTTIME_EPOCH
t = ((t - NTTIME_EPOCH) / (long long)10000000);
wt = unix_time * (long long)10000000 + (long long)NTTIME_EPOCH;
wt = unix_time * (uint64_t)10000000 + (uint64_t)NTTIME_EPOCH;
wt = unix_time * (uint64_t)10000000 + (uint64_t)NTTIME_EPOCH;
t = ((t - (uint64_t)NTTIME_EPOCH) / (uint64_t)10000000);