Volt-for-volt schedule in 2022

The dog days in 2022 are from July 1 1 day to August 19, 2022.

1, initial accommodation: July 2022 1 1 to July 20, 2022, for a total of 10 days. The first 1 day: July 2022 1 1 day; The first night and the second day: July 202212; The third day of the first stay: July 202213; The fourth day of the first ambush: July 202214; The fifth day of the first stay: July 202215; The sixth day of the first stay: July 202216; The seventh day of the first stay: July 202217; The eighth day of the first ambush: July 202218; The ninth day of the first stay: July 202219; The first 10 day: July 20th, 2022.

2. Mid-range: July 2, 20221day to August 9, 2022, totally 20 days. Mid-session 1 day: July 2, 20221day; The second day of Zhongfu: July 22, 2022; Mid-range Day 3: July 23, 2022; Mid-range Day 4: July 24, 2022; Zhongfu fifth day: July 25, 2022; Mid-range Day 6: July 26th, 2022; Mid-range day 7: July 27, 2022; Mid-range Day 8: July 28th, 2022; Day 9 of the middle session: July 29, 2022; Zhongfu Day10: July 30, 2022.

3. Final period: August 2022 10 to August 2022 19, with a total of 10 days. Last day (1): August 2022 10; Last day: August 202211; Last day: August 2022 12; The fourth day of the last day: August 202213; The fifth day of the last day: August 202214; The sixth day of the last day: August 202215; The seventh day of the last day: August 202216; The eighth day of the last day: August 2022 17; The ninth day of the last day: August 202218; Day 10: August 2022 19.

Calculation of delay:

The lodging time is not fixed every year, and the length of lodging time is different, so you need to consult the almanac to calculate it. Simply put, we can use the formula of "from summer to the third night of the day" to express the lodging date, that is, from the summer to the third night in the future, the initial lodging is 10 day, the middle lodging is 10 day or 20 days, and the final lodging is 10 day. In ancient China, the "chronology of trunk and branch" was popular, and 60 groups of different names with 10 heavenly trunk and 12 earthly branch were used to record dates and recycle them.

The day with the word "Geng" is called "Geng Day". The word "Geng" in Geng Day is the seventh word in "A, B, C, D, E, G, Xin, Ren, Gui" 10 day, and it is repeated every 10 day. Starting from the summer solstice, the third Geng day is the first Geng day, the fourth Geng day is in the middle, and the 1 th Geng day after beginning of autumn is the last Geng day.

When there are four Geng days between the summer solstice and the beginning of autumn, the middle part is 10 days, and when there are five Geng days, the middle part is 20 days. It seems that the emergence of Geng Day will affect the length of the Mid-Autumn Festival sooner or later, so some years are 30 days and some years are 40 days.