What Is The First Sunday Of Advent 2025. The first monday of advent; Advent 2025 begins on sunday, november 30th, starting the celebration season for the birth of jesus christ with the advent season ending on the first mass of christmas (vigil mass) on christmas eve.

The day is called the first sunday of advent or advent sunday and is the first day. 1 the word that isaiah the son of amoz saw, concerning judah and jerusalem.