When Does Advent Begin In 2024. Advent 2024 begins on sunday, december 1st, starting the celebration season for the birth of jesus christ with the advent season ending on the first mass of. Advent sunday dates in 2024, 2025 and 2026.
Marking the beginning of the christian liturgical year across many different western churches, and initiating the period of preparation and celebration of the nativity of jesus. On the church calendar, advent always starts four sundays before.