When Does Rosh Hashanah Start 2025. Rosh hashana labehemot for hebrew year 5785 begins at sundown on sunday, 24 august 2025 and ends at nightfall on monday, 25 august 2025. Upcoming rosh hashanah dates include:
All holidays begin at sundown on the start date listed and end at sundown on the end date listed. In 2025, rosh hashanah begins at sundown on monday, sep.