When will the 2021 Futian date end?

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The dog days in 2021 will be from July 11 to August 19, a total of 40 days.The first volt time is 10 days, that is, July 11 to 20; the middle volt time is 20 days, that is, July 21 to August 9; the last volt time is 10 days, that is, August 10 to 19.

What does Futian mean

“Fu” means that Yin Qi is forced to hide in the ground by Yang Qi.There are three Futians every year.Dog days are the hottest time of year.Starting from the summer solstice, according to the arrangement of the stem and branch dates, the third geng day is the first fu.The fourth Geng day is Zhongfu, the first Geng day from the beginning of autumn is the first day of Mofu, and the last ten days.The character "Geng" of Geng Day is the seventh character in the ten-day stem of "A, B, C, Ding, Wu, Ji, Geng, Xin, Ren, Gui", and it is repeated every ten days on Geng Day.The start and end times of Futian vary from year to year, but are roughly from mid-July to mid-August.

The historical origin of Futian

The saying that "the five elements generate and restrain each other" prevailed in the Qin and Han Dynasties.It was believed that the hottest summer days belonged to fire, while geng belonged to metal, and metal was afraid of being burned and melted by fire (fire beats metal).), so on Geng Day, gold must be hidden.Therefore, it is stipulated that the third geng day from the summer solstice is Chufu (there are 10 days), the fourth geng day from the summer solstice is Zhongfu (10 or 20 days), and the first geng day from the beginning of autumn The beginning is the last fu, also known as the last fu (there are 10 days), and it is generally called the three fu.When there are 4 geng days between the summer solstice and the beginning of autumn, the middle period is 10 days, and there are 5 geng days, it is 20 days, so the middle period to the last period is sometimes ten days, sometimes it is 20 days, while the "chufu" and "Mo Fu" is 10 days.

2021 Futian Timetable

Generally speaking, the first and last Futian are fixed for 10 days; the middle Futian time is not fixed, some years are 10 days, some The year is 20 days, which is mainly determined by the number of geng days between the summer solstice and the beginning of autumn:if there are four geng days, the interval between mid-fu and last-fu is 10 days, and if there are five geng days, the interval is 20 days.This year coincides with the 20-day Zhongfu, which is also the 7th consecutive year of the extended dog days since 2015.Therefore, the "San Fu" schedule in 2021 is as follows:

Chufu:10 days from July 11 to July 20;

Middle Fu:July 21 to July 20 August 9th is 20 days;

Mofu:August 10th to August 19th is 10 days.

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