Rosh Hashanah - Rosh Hashanah Eve

Rosh Hashanah Eve

The evening before Rosh Hashanah day is known as Erev Rosh Hashanah ("Rosh Hashanah eve"). As with Rosh Hashanah day, it falls on the 1st day of the Hebrew month of Tishrei, since days of the Hebrew calendar begin at sundown. Some communities perform Hatar'at nedarim (a nullification of vows) after the morning prayer services during the morning on the 29th of the Hebrew month of Elul, which ends at sundown, when Erev Rosh Hashanah commences. The mood becomes festive but serious in anticipation of the new year and the synagogue services. Many Orthodox men immerse in a mikveh in honor of the coming day.