When does the ambush start?

The ambush is counted from the third Geng day after the summer solstice.

In China, the third Geng day from summer to the future (1 Geng day is 7 days) is regarded as a sign of lodging, the first 10 day is called head lodging (first lodging, first lodging), and the fourth Geng day (sometimes 20 days) is called middle lodging (second lodging) and 65438 after beginning of autumn.

If there are four Geng days between the summer solstice and beginning of autumn, the mid-volt (two volts) is 10 days; When there are five Geng days, the middle volt (two volts) is 20 days. This is the plan of the mouth.

The stress of the dog days diet: Eating jiaozi is the first. Eating jiaozi on the head is a traditional custom. Japanese people have a bad appetite and are often thinner than usual, commonly known as "bitter summer". In traditional customs, jiaozi is a food to stimulate appetite and relieve hunger. Eat lying sheep in bed. There is a folk saying that "summer summer sheep has a bowl of soup, and doctors don't need to prescribe it"; After eating noodle soup, people think that eating noodle soup can clear away heat and stop diarrhea.