What do you mean, squat?

Entering a crouching state means entering the dog days.

Entering volts means entering "three volts". There is a folk proverb, "The first night falls in summer", which is the basis for establishing the first autumn. The almanac stipulates that "the number of volts starts from the third day of summer", that is to say, "it starts to count down from summer" and begins to fall on the third "Geng Day". The "Geng Day" here refers to the days prefixed with "Geng" in the ancient "Ganzhi Jiri Law".

The so-called "heat is in three volts" can be divided into initial, middle and final three volts, and its date is determined by the date of the solar terms. The climate in dog days is characterized by "high temperature and high humidity", because the southeast wind blows in dog days, and the air is humid. The humidity of the wind causes great humidity in dog days.

Calculation of "Three Volts" Entry Date

"Three volts" refers to the first, middle and last three volts, which is about mid-July to mid-August. After the summer solstice, although the days are getting shorter and the nights are getting longer, the days are longer than the nights in a day. Every day, the ground absorbs more heat than it emits, and the temperature near the ground is getting higher every day. During the "three volts" period, the ground absorbs almost more heat than it emits, and the weather is the hottest.

According to the traditional calendar, the third day after long summer entered the first stage, the fourth day entered the middle stage, and the first day after beginning of autumn entered the final stage, which are collectively called "dog days". The first and last days are 10 days, and the middle days are sometimes 10 days and sometimes 20 days. The length of accommodation is not fixed every year, and the length of accommodation is also different. You need to look up the almanac to calculate, which can be simply expressed by the four-word formula of "Summer Solstice Day Three Geng".

Please refer to Baidu Encyclopedia-Entering the Volt for the above contents.