The specific time of the first day of the early days of July 2021 and the specific times of the dog days
Chufu is the first stage of the dog days, July 21, 2021 is the first day of Chufu, which represents the arrival of hot weather, until July 30th.End the mid-volt start.In addition to the early days, the dog days also include the middle and last days, for a total of 30 days.
What does Chufu mean
Chufu means the third Geng day after the summer solstice, and it is the first day of Taufu among the three fu.Usually also refers to the period from the third Geng day after the summer solstice to the day before the fourth Geng day, also called "Toufu".Sanfu is the general term for the first, middle and last days, and is the hottest time of the year.Dog days appear every year from mid-July to mid-August on the Gregorian calendar, and the climate is characterized by high temperature, low air pressure, high humidity and low wind speed."Fu" means that Yin Qi is forced to hide underground by Yang Qi.The three fu is divided into the first fu, the middle fu and the last fu, and its date is determined by the combination of the solar term date of the Ganzhi calendar and the date of the Ganzhi calendar.
Time query of dog days in 2021
Time of dog days in 2021:July 21, 2021 - August 19, 2021, a total of 30 days.The specific timetable for the first, middle and last days is as follows:
Chufu:July 21, 2021 - July 30, 2021 (10 days);
Zhongfu:July 31, 2021 - August 9, 2021 (10 days);
Mofu:August 10, 2021 - August 19, 2021 (10 days).
How to calculate the dog days time
To calculate the dog days time, you can simply use the four-character formula "Xiazhi Sangeng" to indicate the date of entering Futian, that is, from the third day after the summer solstice Counting from the "Geng" day, the first period is 10 days, the middle period is 10 days or 20 days, and the last period is 10 days.In ancient my country, "the method of keeping track of the stems and branches" was popular in ancient times, and 60 groups of different names formed by matching 10 heavenly stems and 12 earthly branches were used to record the days and use them cyclically.Every day with the word "Geng" is called "Geng Day".
The word "Geng" in Geng Day is the seventh character of "A, B, C, D, E, Ji, Geng, Xin, Ren, Gui" in the 10 Heavenly Stems.Repeat every day.Starting from the summer solstice, according to the arrangement of the stems and branches, the third Geng day is the first day, the fourth Geng day is the middle day, and the first Geng day after the beginning of the autumn is the last day.When there are 4 geng days between the summer solstice and the beginning of autumn, it is 10 days, and when there are 5 geng days, it is 20 days.It seems that the morning and evening of Geng Day will affect the length of Zhongfu, so there are 30 days of Futian in some years and 40 days of Futian in some years.
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