Tidsrejsen (literally The Time Travel or The Voyage through Time in Danish) is a Danish television series in the form of a Nordic Christmas calendar that was shown over the Christmas period by the Danish Broadcasting Corporation in 2014. As per tradition for Nordic Christmas calendars, the series premiered on 1 December 2014 and ran for 24 episodes. It was written by Poul Berg and directed by Kaspar Munk. Tidsrejsen was filmed mostly in the town of Dragør on Amager, south of Copenhagen. The series has science fiction elements, such as a time machine, and has themes of young love and general love, as well as family, the idea that actions have consequences and the idea that people decide their own fate in life.