Start of month of Sh'vat on the Hebrew calendar. ?????? (transliterated Sh'vat or Shevat) is the 11th month of the Hebrew year, has 30 days, and corresponds to January or February on the Gregorian calendar. ????? ???????, transliterated Rosh Chodesh or Rosh Hodesh, is a minor holiday that occurs at the beginning of every month in the Hebrew calendar. It is marked by the birth of a new moon

Haftarah: Isaiah 66:1-24

https://hebcal.com/h/rosh-chodesh-shvat-2027?uc=ical-jewish-holidays-all