Abstract: A relative clock time display device includes a control unit that accepts setting of time that is referred to as a relative time, which is different from an actual time and in a relative relationship with the actual time, performs timing on a basis of the relative time accepted by the control unit, specifies a current clock time, which is referred to as a relative clock time, in the relative time on a basis of the timing performed by the control unit, and displays, on a display unit, an image or video according to the relative clock time specified by the control unit.