Lag BaOmer (33rd day of counting the Omer) for Hebrew Year 5781 begins at sundown on Thursday, 29 April 2021 and ends at nightfall on Friday, 30 April 2021.

Lag BaOmer (Hebrew: ל״ג בעומר), also Lag B’Omer, is a minor holiday that occurs on the 33rd day of the Omer, the 49-day period between Passover and Shavuot. A break from the semi-mourning of the Omer, key aspects of Lag B’omer include holding Jewish weddings (it’s the one day during the Omer when Jewish law permits them), lighting bonfires and getting haircuts.