Tisha B'Av 2024 Fast Time. The fast of tisha b’av, as decreed by the rabbinic sages, begins at sunset on the 8th day of the hebrew month of av and lasts for 25 hours until nightfall on the 9th. During the 50 years the jews stayed before being.
The period begins on the 17th of the hebrew month of tammuz, a fast day that marks the day when the walls of jerusalem were breached by the romans in 69 ce. Tisha b’av, the 9th day of the month of av, is the saddest day on the jewish calendar, on which we fast, deprive ourselves and pray.