National Geographic Science Advent Calendar 2025 Release Date. Celebrate the season with the national geographic 2023 science advent calendar! 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.

Celebrate the season with the national geographic 2023 science advent calendar! Explore our range of calendars and diaries including the much loved australian geographic society art calendar.