亥时 hàishí 9 to 11 PM Origin Definitions Defs Strokes Stroke Words Sentences Sents 亥 hài 9-11 p.m. the period of time between 9 p.m. and 11 p.m., also known as 亥时 hàishí时 時 shí shichen any of the twelve two-hour periods into which the day was traditionally divided