The source of the five-day weather

The five-day weather is based on China's calendar. Hou was a way of timing in ancient China. In ancient times, five days was called "waiting". At present, this method is still used in meteorology. According to the ancient calendar, five days, three times, six times and four times are one year old. The Yellow Emperor wrote in Su Wen's theory of six dirty images: "Five days is waiting, three days is qi, six qi is time, and four hours is age." And each one is from its main indication. "The ancients thought that five days was a wait; Three weather is a solar term, that is, fifteen days is a solar term; Three months, that is, six solar terms are one season; The change of seasons is one year. This sentence in Huangdi Neijing reminds us to pay attention to our health before and after the arrival of solar terms. Live a healthy life.