How to define sub-time in time?

There are two theories about Zi Shi in academic circles.

The first statement: it is defined as late afternoon (or late afternoon) from 23: 00 to 24: 00 and early afternoon (or noon) from 0: 00 to1. If you take the child just now as an example: born between the night of 23rd and 24th of 20th17th1month, it is late childhood. The latest sub-time calculation method is to postpone another one on the basis of the matching order of the original song. Renri's son is Gengzi, and when it comes to Hai, it is Xinhai, and then Renzi, the main branch of this child's eight characters. Of course, children's calculation methods can be compatible with the songs introduced earlier. Born on 20 17, 12, 12, between 0: 00 a.m. and 1: 00 a.m., that is, Ding You's birthday in the year of Renzi. According to the Song formula: Where can I send it? Lunzi is the true way. As a teenager, I was Renzi.

The second way is to calculate the time from 23 o'clock today to 1 o'clock the next morning according to the daily work of the next day. That is to say, the births from 23: 00 to 24: 00 tonight and from 0: 00 to1tomorrow are calculated according to tomorrow's daily work. For example, those born in February 17, 123:00-24:00 p.m. are not counted as June 1 1, but as June12, that is Tomorrow at 0: 00 am 1 I will be born, which is also my childhood time.