Rosh Chodesh Kislev 2024. Rosh chodesh tevet for hebrew year 5785 begins at sundown on monday, 30 december 2024 and ends at nightfall on wednesday, 1 january 2025. Rosh chodesh kislev for hebrew year 5785 begins at sundown on saturday, 30 november 2024 and ends at nightfall on monday, 2 december 2024.
When blessing the new month in the synagogue on the shabbat before rosh chodesh, it is customary to announce the time that the molad (birth of the new moon) occurs in. In the latter, of two, with the first day of rosh chodesh counting also as the 30th day of cheshvan, and the second day of.