What is the first day of your stay?

The annual summer solar term is around August 23rd. It is stipulated that from the summer to the third Geng day in the future, it is the initial lodging (10 day), from the summer to the fourth Geng day in the future, it is the intermediate lodging (10 day in some years and 20 days in some years), and the first Geng day after beginning of autumn is the final lodging, also known as the final lodging (10 day). (The word "Geng" on Geng Day is the seventh word of "A, B, C, D, E, G, Xin, Ren and Gui" on the 10th) I hope my answer can help you, please accept it, and thank you very much \ (o)/

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