What season is dog days? What month is it in dog days?

The dog days appear in summer, usually from mid-July to mid-August.

The dog days are the hottest 30-40 days in a year in the Central Plains, with ten days fixed at the beginning and the end and ten days and twenty days in the middle.

The ancients used heavenly stems and earthly branches's method to record the days, and every day there was the word "Geng", which was called "Geng Day".

Gengri ranks seventh in ten days, and Gengri repeats every ten days. Therefore, since the beginning of summer, the third Geng day has been called the first autumn; The fourth Geng day is Zhongfu; After beginning of autumn, the first Geng Day is the last day and this is the third day. For example, it is recorded in the Book of Yin and Yang that from the summer solstice, the third watch is in the initial stage, the fourth watch is in the middle stage, and beginning of autumn is in the late stage, which is called the dog days.

Due to the different occurrence time of Geng Day, the mid-lying time is not fixed, some years are 10 days, and some years are 20 days. 20 days in midsummer and 40 days in dog days. In this regard, there is a folk saying called "hidden danger 2".