An Advent calendar is a special calendar used to count or celebrate the days in anticipation of Christmas.
Despite the name, most commercially available Advent calendars begin on December 1, regardless of when Advent begins, which can be as early as November 27 and as late as December 3. The calendar windows open to reveal an image, poem, a portion of a story or a small gift, such as a toy or a chocolate item. But in THIS case, a FTF!