Beginning next week, Jewish communities all across New York will gather for the High Holidays, the holiest time on the Jewish calendar. These special days include Rosh Hashanah, the Jewish New Year, and Yom Kippur, the Day of Atonement. How New Yorkers Will Celebrate Rosh HashanahThis year, Rosh Hashanah begins at sunset on Monday, September 22, 2025, and ends after nightfall on Wednesday, September 24. It’s the Jewish New Year, known as the “Head of the Year,” and in 2025 it marks the year 5786 on the Hebrew calendar. If you know someone observing, a kind thing to say is, “Have an easy fast.”The High Holidays’ Impact Across New YorkNew York is home to one of the largest Jewish populations in the world outside of Israel, so the High Holidays are widely felt here.