RELATIVE TIME DISPLAY DEVICE AND RELATIVE TIME DISPLAY PROGRAM

To set and display a relative time that is in a relative relationship with an actual time. A relative clock time display device 100 includes: relative time setting acceptance means which accepts setting of time (hereinafter referred to as a "relative time") that is different from an actual time and in a relative relationship with the actual time; relative time timing means which performs timing on the basis of the relative time accepted by the relative time setting acceptance means; relative clock time specifying means which specifies a current clock time (hereinafter referred to as a "relative clock time") in the relative time on the basis of the timing performed by the relative time timing means; and display control means which displays, on a display unit, an image or video according to the relative clock time specified by the relative clock time specifying means.