When Do The 12 Days Of Christmas Start 2024. The 12 days of christmas begin on christmas day (december 25) and ends on january 5. According to christian tradition, the 12 days of christmas mark the period between the birth of christ and the arrival of the three wise men, or magi, and can also be.

The 12 days begin on christmas day because this is the day that celebrates jesus’ birth. The 12 days of christmas fall between two major christian feasts: