寅时 yínshí 3 am to 5 am Origin Definitions Defs Strokes Stroke Words Sentences Sents 寅 yín 3-5 a.m. The period of the day from 3 a.m. to 5 a.m.; the third of the twelve two-hour periods 时辰 shíchen.时 時 shí shichen any of the twelve two-hour periods into which the day was traditionally divided