Sixth of the
十二地支 (twelve Earthly Branches), paired with the snake (
蛇) in the zodiac. Combined with the ten Heavenly Stems (
天干),
巳 forms part of names for years (
辛巳,
癸巳…), months, and double-hours in the traditional sexagenary calendar. The double-hour
巳时 covers 9-11 a.m.