In ancient times, people distinguished time by erecting a stick in the open space and judging the time of the day according to the shadow of the stick. Then came the clock. In geomantic omen, they think that clocks and watches have both the function of gossip and geomantic omen, and the never-ending hands of clocks and watches also represent the balanced relationship between birth time, life, sports and laws. Therefore, in the geomantic omen of clocks and watches, it is best to hang them on the auspicious side of decline, so as to reduce the impact of decline.