_AddMicroseconds
BTime& _AddMicroseconds(bigtime_t microseconds);
return _AddMicroseconds(bigtime_t(hours % kHoursPerDay)
return _AddMicroseconds(bigtime_t(minutes % kMinutesPerDay)
return _AddMicroseconds(bigtime_t(seconds % kSecondsPerDay)
return _AddMicroseconds(bigtime_t(milliseconds % kMillisecondsPerDay)
return _AddMicroseconds(microseconds);