// Add*Internal methods add values assuming that the TimeOfDay is in UTC and that
// the values to be added are whole numbers (double type is used instead of int
// to allow larger values and avoid unnecessary casting).
private TimeOfDay AddMillisecondsInternal(double milliseconds)
{
return(new TimeOfDay(BaseValue.AddMilliseconds(milliseconds), m_microsecond,
m_nanosecond));
}