What is the first day of 2023?

Start and end time of initial stage: July 202311-July 20, 2023, *** 10 days.

The ancients in China calculated the year, month, day and time by the method of chronology of cadres and branches. The so-called "dry branch" means ten days' dry branch and twelve places' branch. Ten days of work-A, B, C, D, E, Ji, G, Xin, Ren and Gui; Twelve earthly branches-Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai. Use heavenly stems and earthly branches combination to represent the serial number of year, month and day. Because there are 10 days, there is a Geng day every 10 days. According to the traditional calculation method, in the 24 solar terms, the third Geng day from summer to the future is the "first volt", the fourth Geng day from summer to the future is the "middle volt", and the first Geng day after autumn in the 24 solar terms is the last volt. However, because the number of days between "Summer" and the first Geng Day is almost different every year, the number of days between "Summer" and "Three Nights" is not fixed.