How exactly is the birthday arranged?

Date of birth is calculated according to three basic elements: date and time of birth (what time is it now) and place of birth. In the past, 24 solar terms were needed to calculate the date of birth. The year is established with beginning of spring as the demarcation point, and the next month is based on 12 of the 24 solar terms (beginning of spring, Jingzhe, Qingming, Changxia, Mangzhong, Xiaoshu, beginning of autumn, Bailu, Hanlu, beginning of winter and Daxue). The dryness of the moon column is determined according to the dryness of the sun column, and the dryness of the sun column needs to be checked in the almanac. As for time, in ancient China, a day was divided into twelve hours, and each hour was equivalent to two hours now. Hours: before 23: 00-0 1: 00; Clown: before 0 1: 00-03: 00; Yin Shi: Before 03: 00-05: 00, and so on at other times. The time column is determined according to the sun column.

For example, a man was born in Shangyou County, Ganzhou City, Jiangxi Province13 am on October 23rd 1975 19. Using the online arrangement tools, he found that his date of birth was: Yi Mao Dinghai Gui You Jiayin. The eight characters are arranged as follows: