The Twelve Days of Christmas an the associated evenings of those twelve days (Twelve-tide), are the festive days beginning the evening of Christmas Day (December 25) through the morning of Epiphany (January 6). The associated evenings of the twelve days begin on the evening before the specified day. Thus, the first night of Christmas is December 25–26, and Twelfth Night is January 5–6. This period is also known as Christmastide.