First Day Of Rosh Hashanah 2025. Rosh hashanah 2025 starts on sundown of monday, september 22nd ending the 2 day celebration at sundown on wednesday, september 24, celebrating the jewish new year beginning on the first day of the seventh. This series of four heavenly phenomena includes two.

When is rosh hashanah in other years? In 2024, rosh hashanah begins at sunset on wednesday, october 2.