Basic Jewish Teaching: The Calendar

A graphic of a page from a calendar.

The Jewish calendar is really two calendars in one. The civil year and New Year begin in September, the month of Tishre. The religious year begins with the month of Nissan, March or April. The first month of the civil calendar falls on the seventh month of the religious calendar...

...The present Jewish calendar is lunisolar, the months being reckoned according to the moon and the years according to the sun. A month is the period of time between one conjunction of the moon with the sun and the next. The number of days in a year in this Jewish lunar calendar is shorter than the number of days in the solar calendar. The lunar year consists of twelve months, or 354 days, approximately 10 days, 21 hours shorter than the solar calendar.

To equalize the difference between the two systems, every two to three years the Jewish calendar adds another month, making a leap year consisting of 13 months. This thirteenth month is called Adar Shnee, meaning the second Adar, which is one of the names of another month. The addition of this leap year occurs seven times in each 19-year cycle. This keeps the Biblical festivals aligned with the appropriate seasons.



Tu B'Shevat

Tu B’Shevat, the 15th of Shevat on the Jewish calendar, is the day that marks the beginning of a “new year” for trees.


Purim celebrates the deliverance of the Jewish people from the wicked Haman in the days of Queen Esther of Persia.


Passover (Pesach) celebrates the deliverance of the Jewish people from slavery in Egypt.

Yom Hashoah

Yom Hashoah is also known as Holocaust Remembrance Day, as a memorial to the Jewish people who were slaughtered by the Nazis between 1933 and 1945.

Yom Haatzmaut

Yom Haatzmaut is also known as Israeli Independence Day, the anniversary of Israeli independence as proclaimed by David Ben-Gurion reading the Israeli Declaration of Independence.

Second Passover

A Second Passover (Pesach Sheni) for anyone who was unable to bring the offering on its appointed time (at Passover) in the previous month.

Lag B'Omer

The anniversary of the passing of the great sage and mystic Rabbi Shimon bar Yochai, author of the Zohar, a landmark text of Jewish mysticism.


Shavuot marks the giving of the Torah on Mt. Sinai. The Ten Commandments are read in synagogues, just as they were in the desert on Mt. Sinai over 3,300 years ago.

The 3 Weeks; Tisha B'Av

The Three Weeks and Tisha B’Av are designated as a time of mourning over the destruction of the Holy Temple and the galut (exile).

The 15th of Av

A festival of the future redemption, and thus a day whose essence, by definition, is unknowable to our unredeemed selves.

Rosh Hashanah

Rosh Hashanah is the Jewish New Year. It is the anniversary of the creation of Adam and Eve, and a day of judgment and coronation of God as king.

Yom Kippur

The holiest day on the Jewish calendar, known as the Day of Atonement.


A joyful time to remember God's kindness and reaffirm our trust in His providence.

Shemini Atzeret

Shemini Atzeret means "the eighth [day] of retention". The purpose of the day is to remember and apply the spiritual revelations provided during the festivals of the month of Tishrei.

Simchat Torah

Simchat Torah means "Rejoicing of the Torah". The purpose of this day is to joyously conclude and begin anew the annual Torah reading cycle.


Chanukah (or the festival of Light) commemorates the rededication of the Temple in Jerusalem after a group of Jewish warriors defeated the occupying mighty Greek armies.

Excerpted from Beginning from Jerusalem  by Steve Cohen

Steve Cohen

Steve Cohen is the founder of Apple of His Eye

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