Is the time column in the Gregorian calendar the first time column every day?

In China, the day and night are divided into twelve hours, that is, the twelve earthly branches of Zi Chou Yin Mao Tatsumi indicate the time at noon.

As for the time column in the Gregorian calendar, it means that the time to be measured dominates the work of the day and becomes the time column in the four-column prediction. The first example is as follows: March 0989 14, 65438+14: 00 (11:00-13: 00).

Ding Mao's fifth birthday is Wu Geng, and Wu Geng here is the stone pillar where this man was born.