What is the relationship between the number of days and the meaning of counting volts?

Introduction: Dog days are dog days. In such hot weather, what we are thinking is how to avoid heatstroke and how to deal with it. Every dog day is related to a solar term, so what does the dog day have to do with it? What does it mean to count volts? Want to know how to determine the number of volts on the first day, look at my introduction.

What does volt number have to do with it?

Several dog days are related to the summer solstice solar terms. Starting from the summer, according to the arrangement of dry and branch days, the third Geng Day is the first month. The fourth Geng Day was in the middle, and the first Geng Day after beginning of autumn was the last.

What does it mean to count volts?

Every summer from mid-July to mid-August is a unique solar term in China. "crouching" means being forced to hide underground, which is the hottest time of the year. Starting from the summer, according to the arrangement of dry and branch days, the third Geng Day is the first month. The fourth Geng Day was in the middle, and the first Geng Day after beginning of autumn was the last.

How to determine the first day of several volts

In the mouth of the people in northern China, there is a mantra called: "Summer solstice is three Geng, and the number of people falls", which is the way to determine the first day of the first autumn. So, what is the third watch? This has to start with the ancient calendar in China. The method of recording the year, month and day in ancient China was heavenly stems and earthly branches.

Xungan refers to: a, b, c, d, e, f, g, Xin, n and C.

These twelve meanings are: Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai.

The combination of ten heavenly stems and twelve earthly branches, such as Jia Zi, Yi Chou, Bing Yin ... Gui You, Jia Xu, Yi Hai ... 60 is a cycle that goes on endlessly.

According to the above determination method, it shows that the date of several volts (the first day of the first volt) is uncertain, and the number of days from summer to the future is also uncertain. If the day of the summer solstice is Geng Day, then the number of days of the third Geng Day is twenty days. If the summer solstice is the second day of Geng Day, it will take nine days to reach the first Geng Day and twenty-nine days to reach the third Geng Day. Therefore, the volt number (the first day) is between summer and the twentieth day to the twenty-ninth day in the future.

On the other hand, during the forty-five days from summer solstice to autumn, it is between 20 and 29 days because of the uncertainty of the number of days between summer solstice and the first day. Therefore, from the summer solstice to beginning of autumn, if there are four Geng days, it will be ten days. If there are five Geng days, it will be 20 days. Because the first Geng Day after beginning of autumn is the first day of the last autumn, this cannot be changed.

According to the above determination method, it shows that the date of several volts (the first day of the first volt) is uncertain, and the number of days from summer to the future is also uncertain. If the day of summer solstice is Geng Day, then the number of days of the third Geng Day is twenty days; If the summer solstice is the second day of Geng Day, it will take nine days to reach the first Geng Day and twenty-nine days to reach the third Geng Day. Therefore, the volt number (the first day) is between summer and the twentieth day to the twenty-ninth day in the future.

On the other hand, during the forty-five days from summer solstice to autumn, it is between 20 and 29 days because of the uncertainty of the number of days between summer solstice and the first day. Therefore, from the summer solstice to beginning of autumn, if there are four Geng days, it will be ten days. If there are five Geng days, it will be 20 days. Because the first Geng Day after beginning of autumn is the first day of the last autumn, this cannot be changed.

How many days is a dog day?

Dog days are usually 30 days, and in some years it is 40 days, mainly depending on the number of days in the middle.

Chufu (Fu Tou): From the third Geng Day after summer (referring to the day when the word "Geng" appears on the trunk and branches) to the day before the fourth Geng Day after summer. After summer, the third Geng day is the first day of accommodation.

Middling (two volts): from summer to the fourth Geng day in the future to the day before the first Geng day after beginning of autumn. The fourth Geng Day after long summer was designated as the first day of crouching. If the first Geng day after beginning of autumn is the fifth Geng day from summer to the future, it is divided into 10 days; If the first Geng Day after beginning of autumn is the sixth Geng Day from summer to the future, the middle part is 20 days.

Final lodging: the day before the first Geng Day after beginning of autumn and the second Geng Day after beginning of autumn. After beginning of autumn, the second Geng Day was designated as going out, which means the dog days are over.