The Twelve Days of Christmas, also known as Twelvetide, is a festive Christian season to celebrate the nativity of Jesus. In most Western Church traditions Christmas Day is the First Day of Christmas and the Twelve Days are 25 December – 5 January. For many Christian denominations, such as the Anglican Communion and Lutheran Church, the Twelve Days period is the same as Christmastide; for others, such as the Catholic Church, Christmastide lasts a little longer; the Twelve Days are different from the Octave of Christmas, which is the eight-day period from Christmas Day until 1 January. In Anglicanism, the term "Twelve Days of Christmas" is used liturgically in the Protestant Episcopal Church in the United States of America, having its own responsory in the Book of Common Prayer for Matins.