Is the child born on the same day or the next day?

Hello, I'm glad to answer your questions. Children are divided into early children and late children, and early children are born on the same day. Born late is the next day. According to the western calendar, time starts at 0 o'clock, which is the meridian theory. Then this calendar is what we now know as the 24-hour system. The eastern calendar also adopts the meridian theory, but there are differences in the middle. Although the meridian theory is adopted in the East, the time unit in the East is the twelve earthly branches. Starting at midnight, that is, the time between 1 1 and 0 o'clock, is not the beginning of the next day, but the first day, and the second day will start after midnight (0 o'clock), so it is necessary to judge whether it is the first day or the second day by the time around midnight.