dead of night; middle of the night; midnight; third quarter of the hour of the ox (2-2:30am, or 3-3:30am)
Earth Ox (26th year of the sexagenary cycle, e.g. 1949, 2009, 2069)
cursing ritual where one visits a shrine at 2am and nails a doll representing a person to a tree, praying for said person's death