Hebrew / Jewish Calendar

Hebrew / Jewish Months

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No Hebrew name Length in days Babylonian name Notes
1 Nissan 30 Nisanu Aviv (spring) in the Tanakh -
also spelled Nisan
2 Iyar 29 Ayaru Ziv in the Tanakh -
also spelled Iyyar
3 Sivan 30 Simanu also spelled Siwan
4 Tamuz 29 Du’uzu also spelled Tammuz
5 Av 30 Abu also spelled Ab
6 Elul 29 Ululu
7 Tishrei 30 Tashritu Eitanim or Ethanim in the Tanakh -
also spelled Tishri
8 Marcheshvan 29 or 30 Arakhsamna Bul in the Tanakh -
often shortened to Cheshvan / Heshvan
9 Kislev 30 or 29 Kislimu also spelled Kislew / Chislev / Chisleu
10 Tevet 29 Tebetu also spelled Tebeth
11 Shevat 30 Shabatu also spelled Shvat / Shebat
12 Adar I 30 Adaru Adar Aleph – only in leap years
12/13 Adar / Adar II 29 Adaru Adar Bet in leap years

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Month Holidays/Notable days
Nissan Passover
Iyar Pesach Sheni / Lag B’Omer
Sivan Shavuot
Tamuz Seventeenth of Tammuz
Av Tisha B’Av / Tu B’Av
Tishrei Rosh Hashanah / Yom Kippur / Sukkot / Shmini Atzeret / Simchat Torah
Kislev Hanukkah
Tevet Tenth of Tevet
Shevat Tu B’Shevat
Adar / Adar II Purim