350 ymd_to_ord(int year, int month, int day)  in ymd_to_ord()  function
359     return (ymd_to_ord(year, month, day) + 6) % 7;  in weekday()
368     int first_day = ymd_to_ord(year, 1, 1);     /* ord of 1/1 */  in iso_week1_monday()
554             int ordinal = ymd_to_ord(*y, *m, 1) +  in normalize_y_m_d()
3027             int left_ord = ymd_to_ord(GET_YEAR(left),  in date_subtract()
3030             int right_ord = ymd_to_ord(GET_YEAR(right),  in date_subtract()
3133     int today         = ymd_to_ord(year, GET_MONTH(self), GET_DAY(self));  in date_isocalendar()
3217     return PyLong_FromLong(ymd_to_ord(GET_YEAR(self), GET_MONTH(self),  in date_toordinal()
4704     ordinal = ymd_to_ord(year, month, day);  in utc_to_seconds()
5225             delta_d = ymd_to_ord(GET_YEAR(left),  in datetime_subtract()
5228                       ymd_to_ord(GET_YEAR(right),  in datetime_subtract()
5587             days = ymd_to_ord(GET_YEAR(self),  in datetime_hash()