Christmas is an annual holiday that celebrates the birth of Jesus. The date of the celebration is traditional, and is not considered to be his actual date of birth. Christmas festivities often combine the commemoration of Jesus’ birth with various secular customs, many of which have been influenced by earlier winter festivals.

In most places around the world, Christmas Day is celebrated on December 25. Christmas Eve is the preceding day, December 24. In the United Kingdom and many countries of the Commonwealth, Boxing Day is the following day, December 26. In Catholic countries, Saint Stephen’s Day or the Feast of St. Stephen is December 26. The Armenian Apostolic Church observes Christmas on January 6. Eastern Orthodox Churches that still use the Julian Calendar celebrate Christmas on the Julian version of 25 December, which is January 7 on the more widely used Gregorian calendar, because the two calendars are now 13 days apart.