What are the first day, China and Japan, and the end? What are the first day, China, Japan and the end?
Every year, the dog days occur between hot summer and hot summer (from mid-July to mid-August in Gregorian calendar). The so-called "three volts fever" can be divided into the first three volts and the last three volts. According to the traditional calculation method, the time of "Fu" is calculated according to the date of solar terms and calendar, starting from "Geng Day". Among the 24 solar terms, the third day from summer to the future is the first day, the fourth day from summer to the future is the middle day, and the first day after beginning of autumn is the last day, which is always called the third day. The climate in dog days is characterized by "high temperature, high humidity and high fever". The reason for the high humidity in dog days is that the southeast wind blows in dog days, and the Pacific Ocean and Indian Ocean are in the southeast direction. The air is humid, and the humidity of the wind causes the high humidity in the dog days.