The 24 Hours of A Christmas Story event starts at 8 PM on Christmas Eve and runs until 8 PM the following day. It is a 24-hour marathon of the classic holiday film, A Christmas Story, and is a beloved tradition for many families across the globe. The marathon is broadcast by several networks, including TBS, TNT, and Freeform, and is a wonderful way to celebrate the season. The film is based on the novel In God We Trust: All Others Pay Cash by Jean Shepherd and stars Peter Billingsley as Ralphie Parker.