MDAY_WIDTH        203 ext/date/date_core.c #define MON_SHIFT  (MDAY_WIDTH + HOUR_WIDTH + MIN_WIDTH + SEC_WIDTH)
MDAY_WIDTH        210 ext/date/date_core.c #define EX_MDAY(x) (((x) >> MDAY_SHIFT) & PK_MASK(MDAY_WIDTH))