Ash Wednesday, a day of fasting, is the first day of Lent in Western Christianity. It occurs 46 days (40 fasting days, if the 6 Sundays, which are not days of fast, are excluded) before Easter and can fall as early as 4 February or as late as 10 March. Ash Wednesday is observed by many Western Christians, including Catholics, Lutherans, Methodists, Anglicans, and Presbyterians.
Christmas or Christmas Day is an annual festival commemorating the birth of Jesus Christ, observed generally on December 25 as a religious and cultural celebration among billions of people around the world. A feast central to the Christian liturgical year, it closes the Advent season and initiates the twelve days of Christmastide, which ends after the twelfth night. Christmas is a public holiday in many of the world's nations, is celebrated culturally by a large number of former or non-Christian people, and is an integral part of the Christmas and holiday season.