History of the Jewish calendar Structure of the Jewish calendar The zodiac in Jewish tradition TISHREI:  Rosh Hashanah | Yom Kippur | Sukkot | Simchat Torah HESHVAN   KISLEV: Hanukkah TEVET   SHEVAT: Tu b'shvat ADAR: Purim NISAN: Passover IYYAR: Israel Indep. Day |  Lag B'omer SIVAN: Shavuot TAMMUZ: 17th of Tammuz AV: Tisha Be-av | Tu Be-av ELUL