Method WeekDay

be/src/runtime/date-value.cc:249–253

}

int DateValue::WeekDay() const {
  if (UNLIKELY(!IsValid())) return -1;
  const cctz::civil_day cd = EPOCH_DATE + days_since_epoch_;
  return static_cast<int>(cctz::get_weekday(cd));
}

int DateValue::DayOfYear() const {
  if (UNLIKELY(!IsValid())) return -1;