Which day in 2018 to ambush 2018 ambush schedule
Four seas network: three dog days is the hottest season of the year, three dog days is a kind of lunar calendar, three dog days from July every year, 10 days for a volt. What's the date of ambush in 2018? Let's have a look.
What is the date of arrival in 2018
The time of ambush in 2018 is July 17, 2018, and the end of ambush on August 25, 2018, a total of 40 days.
10 days in the beginning of 2018: July 17, 2018 to July 26, 2018;
20 days of medium voltage in 2018: July 27, 2018 to August 15, 2018.
Last 10 days in 2018: August 16-25, 2018.
Ambush means to enter into the dog days. "Summer solstice three Geng number head volt", which is the basis for the establishment of the first volt.
The three dog days appear in the summer heat and the beginning of autumn, which is the day with the highest temperature, humid and sultry in the year. The so-called "dog days" refers to the "three dog days" of the lunar calendar, which is the hottest period of the year. It can be understood that "Fu" means that the weather is too hot to move. But the reason why it is called "Fu" is that there are many cold factors. Sanfu is the hottest 30 or 40 days of the year in Central China. Sanfu is calculated according to the lunar calendar, which is between the late July and the early August of the lunar calendar.
Sanfu is the hottest 30 or 40 days of the year in Central China. Sanfu is calculated according to the lunar calendar, which is between the late July and the early August of the lunar calendar. The time of ambush is not fixed every year, and the length of the ambush is not the same. It needs to be calculated by checking the almanac. It can simply use the four word formula 'summer solstice three Geng' to express the date of ambush, that is, from the third 'Geng' day after the summer solstice, the first ambush is 10 days, the middle ambush is 10 days or 20 days, and the last ambush is 10 days.
In ancient China, the 'ganzhiji Japanese method' was popular. 60 groups of names, which were matched by 10 heavenly stems and 12 earthly branches, were used to record the dates and circulate them. Every day when there is the word "Geng", it is called "Geng day". The word "Geng" of Geng day is the seventh of the ten Heavenly Stems of "a, B, C, D, e, I, G, Xin, Ren, GUI". Geng day is repeated every 10 days.
From the beginning of the summer solstice, according to the arrangement of the days of the GaN and Zhi dynasties, the third day of Geng is the first day of ambush, the fourth day of Geng is the middle day of ambush, and the first day of Geng after the beginning of autumn is the last day of ambush. When there are 4 g days between the summer solstice and the beginning of autumn, the median period is 10 days, and 5 g days is 20 days. It seems that the occurrence of the day of Geng will affect the length of the middle volt, so there are some years with 30 days of dog days and some years with 40 days of dog days.