Shabbat before Rosh Chodesh Nissan
Haftarah: Ezekiel 45:16 - 46:18

https://www.hebcal.com/holidays/shabbat-hachodesh-2021?utm_source=js&utm_medium=icalendar

Beginning of new Hebrew month of Nisan. Nisan (sometimes transliterated Nissan) is the 1st month of the Hebrew year. rresponds to March or April on the Gregorian calendar

https://www.hebcal.com/holidays/rosh-chodesh-nisan-2021?utm_source=js&utm_medium=icalendar