How to calculate the nominal age from the Qing palace table?

Beginning of spring is the boundary, not the New Year. The month is also divided into 24 solar terms. Beginning of spring begins in January, surprises begin in February, Qingming begins in March, and so on. One section is the month, that is, the festival in January is beginning of spring, and the gas is rain. Such a month is also called the Moon Building, beginning of spring, the rain is silver moon, the shock begins in March, and the spring is divided into Uzuki. This is Jia Zi's way of observing the moon. The month in the Qing dynasty is such a month, which is a little different from the month in the lunar calendar. Please pay attention when looking up the table.