When did the folk call "Fu Jiu" begin and end?

The dog days are the hottest thirty or forty days in a year in the Central Plains. According to the lunar calendar, the dog days are between the middle and late July and the early August of the solar calendar.

The time of accommodation is not fixed every year, and the length of accommodation is also different. You need to check the almanac to calculate it. Simply put, we can use the formula of "Xia San Geng" to express the lodging date, that is, from the third Geng day in Xia Hou, the initial lodging is 10 day, the intermediate lodging is 10 day or 20 days, and the final lodging is 10 day.

Point nine:

The number nine begins at the end of winter in 65438+February of the Gregorian calendar and ends on Everyone's Day. There is no exact information about when the custom of counting nine originated. However, it was popular at least in the Northern and Southern Dynasties. Liang counts as nine cold days, that is, from the date of winter, every nine days counts as a "nine", until "September 9" is 81 days, counting as nine days.

In the traditional culture of China, nine is the extreme number, which is the largest, largest and longest concept. Nine nines is eighty-one, which is the "maximum" number. People in ancient China believed that after the solstice on September 8 1 day, spring must have arrived.

Extended data

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. Every year after the dog days, it is very hot, especially in the middle (sometimes more than 20 days), the hottest. There is a folk saying that "the cold is in the March 9th and the summer heat is in the middle".

"March 9th" refers to the third "nine days" after the winter solstice, that is, the 19th to 27th days after the winter solstice. "The third nine days after the winter solstice" refers to "March 99", which is also the day when March 99 and April 99 intersect, not "March 99", that is, "March 99" is nine days instead of one day. People say, "it's cold for nine, and it's cold for nine in March."

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