HOUR_SHIFT        209 ext/date/date_core.c #define EX_HOUR(x) (((x) >> HOUR_SHIFT) & PK_MASK(HOUR_WIDTH))
HOUR_SHIFT        215 ext/date/date_core.c      ((h) << HOUR_SHIFT) | ((min) << MIN_SHIFT) | ((s) << SEC_SHIFT))