How to calculate the date and time of birth?

Serial number! Geng is ugly, and when it is ugly, it is also ugly. To count the dry days of the hourly column, Remember the order of ten dry days: A, B, C, D, E, G, N, N. The next order is: Gui, A, B, C ............................................................................................................................................................. Lunzi is the true way. It is said that the sky dryness of the solar column is calculated by the sky dryness of the solar column.