First Day Of Advent Calendar 2025 Calendar. Saturday in the 1ˢᵗ week 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.
The first monday of advent; Year c began on the 1st sunday of advent in 2024 and now continues in.