Metonic Cycle - Hebrew Calendargrowlinggriffin (34)in #technology • 7 years ago Intercalation, Metonic Cycle, Chronology, Hebrew calendar, Islamic calendar, Gregorian calendar, 19 equal temperament, Jew, Islam, Passover, Timekeeping, Lunations, Synodic Months. Uploaded: Greenday, Mercury 19, Year 2 #hebrew #islam #calendar #time