Who knows how to calculate volts?

How to calculate the dog days? The calculation of dog days is a little more complicated, but it is easy to calculate as long as you master the laws of China's traditional calendar.

Because in the traditional calendar of China, 365 days a year are based on heavenly stems "A, B, C, D, E, Ji, G, Xin, N, G" and earthly branches "Zi, Ugly, Yin, Mao, Chen, Ji, Wu, Wei, Shen, You, Xu, Hai". Thus, in the traditional calendar of China, there is a heavenly stems and earthly branches Day every day, such as Jiazi and Butyl.

Dog days, one volt is ten days, counted by days. Therefore, the dog days are divided into three days, that is to say, after the third day of Gengtian, the summer solstice is the first day, the first volt. For example, the summer solstice in 2006 is June 2 1 in the western calendar year, and the dry day of this day is Xinri. 28 days later, it is the third Geng Day. So July 20, 2006 is the first link. Eyes? Trace emperor? Hey? Hey? Sorry, gum. Blink? Books fade? Enter the second volt on September 29; Ten days later, it was another Geng day, that is, August 9, and it entered the dog days. In other words, it is very hot after entering the dog days every year, especially on the tenth day of dog days, which is the hottest.

According to the accumulated heat of the earth, the people of China summed up the saying of "Twenty-four Autumn Tigers", which means that it is also very hot 24 days after beginning of autumn every year. However, China folks also

At the same time, it is concluded that "beginning of autumn is cool in the morning and evening; Mosquitoes have been dead since autumn. " This means that although the weather is still very hot after beginning of autumn, it is cool in the morning and evening, and there are fewer and fewer mosquitoes to hate since beginning of autumn.

What needs to be explained here is that due to the fact that the preparation of the trunk and branch is 60 cycles, sometimes, after the initial lodging, Geng Day may not appear immediately, so sometimes, during the middle lodging, it may be more than ten days.

The dog days are the hottest days of the year. "V" means being forced to hide underground. "Three volts" is the general name of the initial, middle and final volts, which appears from mid-July to mid-August in the solar calendar every year. According to the climate law of the lunar calendar in China, predecessors have long stipulated: "The third Geng day from long summer to the future is the first day (the first day), the fourth Geng day is the first day (the second day), and the first Geng day after beginning of autumn is the last day (the third day), which lasts for ten days." In some years, "crouching in the middle" is 20 days, while there are 40 days.

According to the textual research of Shu Tong, the lunar calendar and the perpetual calendar, this year is the year of rooster in the solar calendar in 2005. "Three volts" is: July 15, and the tenth day of the Chinese lunar calendar is the first day (also called Fu Tou); July 25, the twentieth day of the lunar calendar, medium volt (two volts); /kloc-The last day of August (dog days) in 0/4 is the first day of July in the lunar calendar.

Generally speaking, every volt lasts for ten days, and there are thirty days in three volts. But this year's "year" is "medium volt" (two volts) for 20 days. Therefore, the dog days last for forty days. That is, from the tenth day of the first lunar month to the last day (the seventh day of the seventh lunar month? Terrier? Aung San? United neon? Hey?

The "dog days" are determined according to the ancient "method of keeping records of the sun by the cadres and branches". Every summer to the future, the third Geng Day (referring to the day with the word "Geng" on the trunk and branches) is the beginning period, the fourth Geng Day is the middle period, and the first Geng Day after beginning of autumn is the end period, collectively referred to as the dog days. As the saying goes, "it's hot in dog days." According to the traditional calendar of our country, it is the hottest dog days in summer all year round. Three volts refers to three consecutive periods of initial, intermediate and final voltage. From summer to the future, the third Geng day is the first day of dive (today is the first day of dive this year), the fourth Geng day is the first day of dive, and the first Geng day after beginning of autumn is the last day of dive, each of which is 10 day, but in some years it is 20 days, such as this year. Generally speaking, in the "dog days", the average temperature is the highest in the "middle range". Of course, this calculation method of the ancients is not very scientific, and it is not necessarily closely combined with the meteorological reality of that year. The extreme maximum temperature in all parts of the year does not necessarily appear in the "middle volt" or even in the "three volts". But in any case, the dog days in midsummer are really hot, so everyone should pay attention to heatstroke prevention and cooling.