Three Kings Day.
and the 12th Day of Christmas
On the 12th day of Christmas my true love said to me
Get rid of that damn tree already!
January 6th is the traditional day the Magi, or the Three Kings, first visited the Christ Child. They came bearing gifts of Gold, Frankincense, and Myrrh.
Today is also known as Little Christmas, Epiphany, Twelfth Day, Greek or Orthodox Christmas, La Befana (Italy) and the 12th Day of Christmas.
And yes, however you celebrate today, Christmas is officially over!
link: Wikipedia – Biblical Magi