Beginning of new Hebrew month of Adar II (on leap years). Adar II (sometimes "Adar Bet" or "Adar Sheni") is the 13th month of the Hebrew year, occurring only on leap years. Corresponds to February or March on the Gregorian calendar

https://www.hebcal.com/holidays/rosh-chodesh-adar-ii-2022?utm_source=js&utm_medium=icalendar