子时 zǐshí 11 PM to 1 AM Origin Definitions Defs Strokes Stroke Words Sentences Sents 子 zǐ [Earthly Branch] the first of the twelve Earthly Branches, representing the North, the year of the Rat, and the time from 11 p.m. to 1 a.m.时 時 shí shichen any of the twelve two-hour periods into which the day was traditionally divided