Rosh Chodesh Sh’vat
Begins at sundown on Sunday, 26 January 2020 (1st of Sh’vat, 5780)
Beginning of new Hebrew month of Sh’vat. Sh’vat (sometimes transliterated Shevat) is the 11th month of the Hebrew year. Corresponds to January or February on the Gregorian calendar.
Source hebcal