This how to video explains how to use a clock as a compass if needed. To start, simply place a clock on a flat surface and place a match in the very center of the clock so that the shadow of the match is even with the hour dial. North will be located at the midpoint between the 12 on the clock and wherever the shadow of the match is cast. The video then shows an example of the application by using a piece of paper and a pin. The narrator shows how the user can go about finding where north is located with a simplified demonstration.