When Is Rosh Hashanah 2024 Calendar. Rosh hashanah, also known as the jewish new year, is a celebration that begins after sunset on the eve of tishrei 1 (tishrei is the seventh month in the hebrew calendar followed by the jewish people). It begins at sundown on the eve of tishrei 1 (oct.
This year, rosh hashanah starts on the evening of october 2 and ends on the evening of october 3. The tenth day of tishrei is yom kippur, the day of atonement.