public void TicksToDaysAndTickOfDayAndBack(long ticks)
{
long tickOfDay;
int days = TickArithmetic.TicksToDaysAndTickOfDay(ticks, out tickOfDay);
Assert.AreEqual(ticks, TickArithmetic.DaysAndTickOfDayToTicks(days, tickOfDay));
}
public long ToUnixTimeTicks() => TickArithmetic.DaysAndTickOfDayToTicks(duration.FloorDays, duration.NanosecondOfFloorDay / NanosecondsPerTick);