Fast of Behav

A sign announcing fast day prayers for Behav in the Zichron Moshe Synagogue in Jerusalem. The special Torah Reading for Mincha of a fast day, as announced on this sign, is done only if at least ten men are fasting.

The Fast of Behav (תענית בה"ב) refers to a tradition of Ashkenazic Jews to fast on the Monday, Thursday, and then following Monday after the holidays of Sukkot and Pesach. While today very few people fast, many Ashkenazic communities recite the Selichot for these days. Practically, the fasts are observed in the months of Cheshvan and Iyar, so as not to fast in the happy months of Tishrei and Nisan.