Minor Jewish holiday of love. Observed on the 15th day of the Hebrew month of Av

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

Shabbat after Tish'a B'Av (Shabbat of Consolation). The first of seven Shabbatot leading up to Rosh Hashanah. Named after the Haftarah (from Isaiah 40) which begins with the verse נַחֲמוּ נַחֲמוּ, עַמִּי ("Comfort, oh comfort my people")
Haftarah: Isaiah 40:1 - 40:26

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