In the United States and most Western countries, Christmas is celebrated on December 25th, but the Christmas season officially begins on December 1st and ends on January 6th, also known as the Epiphany. This 36-day period is also known as the Advent season, and it is a time of preparation and anticipation leading up to the birth of Jesus Christ. The Christmas season is a time of celebration, and it is also a time of reflection and spiritual renewal.