What is the introduction of the terminal segment?

1, the last day is not a holiday, but the last day of three days, from the first Geng Day after beginning of autumn to the day before the second Geng Day after beginning of autumn. A * * * is 10 day, dog days are the hottest time of the year, and the weather is still hot on the last day.

2. Three volts can be divided into initial volts, intermediate volts and final volts, and its date is determined by the solar terms, dry and branch dates. The dog days appear between the hot summer and the hot summer, and its climate is characterized by high temperature, low pressure, high humidity and low wind speed. Dog days are usually thirty or forty days.