Christmas officially ends on January 6th, which is also known as the Feast of the Epiphany. This day commemorates the arrival of the Magi to the baby Jesus and is also known as Three Kings Day in some cultures. Many Catholics also observe a period of 12 days of Christmas, from December 25th to January 6th, to commemorate the events surrounding the birth of Jesus Christ. During this time, many Catholics attend special Masses and events to honor the Christmas season.