שבעה עשר בתמוז

Seventeenth of Tammuz

The Seventeenth of Tammuz marks the breach of Jerusalem's walls by the Romans and begins the Three Weeks mourning period leading to Tisha B'Av.

When is Seventeenth of Tammuz 2026?

Observed on

Thursday, July 2, 2026

The fast is observed on the 17th of Tammuz, typically in June or July. It is a dawn-to-nightfall fast.

See Seventeenth of Tammuz dates for:

Significance

The Seventeenth of Tammuz commemorates five calamities including the breaking of the Tablets, the breach of Jerusalem's walls, and the cessation of the daily offering.

Frequently Asked Questions About Seventeenth of Tammuz

The Seventeenth of Tammuz (Shiva Asar B'Tammuz) is a fast day commemorating five calamities: the breaking of the first tablets of the Ten Commandments, the cessation of the daily Temple offering, the breaching of Jerusalem's walls before the Second Temple's destruction, the burning of a Torah scroll by Apostomos, and the placing of an idol in the Temple.

The fast marks the beginning of the Three Weeks (Bein HaMetzarim), a period of mourning leading up to Tisha B'Av. During this time, weddings and celebrations are avoided, haircuts are restricted (particularly after the 1st of Av), and music is not played. The mourning intensifies during the Nine Days starting from Rosh Chodesh Av.

About Seventeenth of Tammuz

Seventeenth of Tammuz (שבעה עשר בתמוז) is one of the important holidays in the Jewish calendar. This page provides the dates for Seventeenth of Tammuz 2026 and information about its meaning and observance.