When is the summer weather?
What are the three volts in the dog days?
The three volts are divided into the first, middle and last days.
There is an extremely harsh period in summer. We call this period the three-volt weather. The three-volt weather is divided into three periods, the first, middle and last periods. The three-volt weather advances one after another. The weather will increase accordingly when it reaches the first subdued period, and when it reaches the middle subdued period, the temperature will reach its peak.
When are the Dog Days?
The Dog Days occur between the Little Heat and the Beginning of Autumn. They are the hottest, humid and sultry days of the year. The so-called "Dog Days" refers to the "Dog Days" of the lunar calendar, which is the hottest period of the year.
It can be understood this way: "Fu" means that the weather is too hot, so it is better to stay down and not move. But the reason why the dog days of summer are called "dog days" is because there are also many cold factors involved. Sanfu is the hottest three to forty days of the year in the Central Plains. Sanfu is calculated according to the lunar calendar, and it is approximately between mid-to-late July and early August in the solar calendar.
According to the Chinese calendar, this is the beginning of the real summer. Common people often say: hot comes in the third volt, cold comes in the 39th. Dog days are the season with the highest temperature and highest humidity in a year. They are divided into the first, middle and last days. The first and last days are fixed at 10 days. The middle days have 10 days in some years and 20 days in some years.
The beginning of the volt period is called entering the volt or crossing the volt, and the end of the volt period is called the exit. The number of days of mid-fall depends on how early or late the mid-fall occurs. Generally, if the mid-fall occurs before July 28, the mid-fall lasts for 20 days. If the mid-fall occurs on July 29, the mid-fall lasts for 10 days.
When is the dog day?
The time of the dog day is not fixed every year, and the length of the dog day is also different. You need to consult the almanac to calculate it. Simply use the four days of "summer solstice three Geng" The word formula is used to express the date of the fall, that is, counting from the third "Geng" day after the summer solstice, the first fall is 10 days, the middle fall is 10 or 20 days, and the last fall is 10 days. In ancient my country, the "Stems and Branches Day Method" was popular, which used 60 different groups of names composed of 10 heavenly stems and 12 earthly branches to mark days and use them cyclically.
How to calculate the time of incubation
In the lunar calendar used in our country, there is a "Stem and Branch Day Method", using "Heavenly Stems" (A, B, C, D, E, Ji, The 10 characters of Geng, Xin, Ren, Gui and the 12 characters of "Earthly Branches" (Zi, Chou, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu, Hai) are combined into 60 groups. Arrange the order of year, month, day and hour, and use it over and over again.
According to the provisions of the "Stem and Branch Day Calendar Law", the date of the Dog Days is from the summer solstice to the third Geng day, which is the first day, the fourth Geng day to the fifth Geng day, which is the middle day, and the beginning of autumn. The period from the first Geng day to the second Geng day is Mofu. Each Geng day is 10 days apart, and the number of Zhongfu days is not fixed. There are 4 Geng days between the summer solstice and the beginning of autumn, and the Zhongfu is 10 days. There are 5 Geng days, and the Zhongfu is 20 days.
Which dog day is the hottest
Under normal circumstances, the "middle dog days" have the highest temperature and are also the hottest.
On the summer solstice, the sun shines directly on the Tropic of Cancer. It is the beginning of summer and the day with the longest sunshine. But the earth lags behind in accumulating heat.
Just like the highest temperature of the day is not at 12 noon, but at 14:00, and the lowest temperature is not at 12 in the middle of the night, but at 4 in the morning.
After the summer solstice, the days gradually become longer and the nights become shorter. Every day, more heat is absorbed during the day than emitted at night, so the temperature on the ground is getting higher day by day, accumulating to the mid-voltage level and reaching the peak period, which is the hottest time.
After the mid-day fever, the length of day and night changes again, and there is no longer mid-day fever. Everything has a process of occurrence, development, climax, and ending, and Dog Day is no exception.
As the saying goes, "Practice in the winter and cultivate the three volts in the summer." You must pay attention to protect yourself during the dog days. The volts in the dog days are lurking, so it is better to be quiet and not move.