- Jewish calendar, Hebrew calendar - (Judaism) the calendar used by the Jews; dates from 3761 BC (the assumed date of the creation of the world); a lunar year of 354 days is adjusted to the solar year by periodic leap years
--1 is a kind of lunisolar calendar
--1 has parts:Jewish calendar month; Tishri; Heshvan; Kislev, Chislev; Tebet, Tevet; Shebat, Shevat; Adar; Veadar, Adar Sheni; Nisan, Nissan; Iyar, Iyyar; Sivan, Siwan; Tammuz, Thammuz; Ab, Av; Elul, Ellul