What is the dog days?

Incubation means entering the dog days, from July to mid-August every year. After lodging, the surface humidity becomes larger and absorbs more heat, which is getting hotter every day. After entering the dog days, the weather is the hottest, the air humidity is high, and the weather is even more sultry. So when is the dog days? Let's have a look.

What is the dog days? 20 17. Dog days: 20 17, 12, Chen Geng.

What does it mean to enter the dog days? ? How many heads are there on the summer solstice? This is the basis for establishing the initial stage.

? Three volts? It refers to the initial, middle and final accommodation, that is, from 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. Arrive? Three volts? During this period, the heat absorbed by the ground almost exceeded the heat emitted by it, and the weather was the hottest. After that, the heat absorbed by the ground began to be less than the heat emitted by the ground, and the temperature gradually decreased. So the hottest time of the year usually appears on the summer solstice? Three volts? .

The third solstice since summer? Hey? The first day (10), the middle day (10 or 20) and the last day (after beginning of autumn 10) are the hottest days of the year.

When is the dog days of 20 17? The first, middle and last three days of 20 17 are as follows, ***30 days.

20 17 initial time: 20 17 July 12 Chen Geng.

20 17 midnight time: 2065438+July 22, 2007

20 17 Terminal time: 20 17 August 1 1 Gengwu.

The dog days of 20 17 last for 30 days, from July 18 to August 17.

Generally, the calculation method of dog days is based on the method of main branch date:

Chufu: the third solstice after summer? Hey? Day;

Guanzhong: The fourth solstice after summer? Hey? Day;

The last stage: the first stage after beginning of autumn? Hey? Day.

Note: The duration of each volt is 10 day. If it ends after beginning of autumn, the dog days are 10 days. If the middle section ends before beginning of autumn, there will be 40 days in dog days.