What does noon mean?

Noon corresponds to the modern time from 1 1 to 13.

In ancient China, a day was divided into twelve hours, and each hour was equivalent to two hours today. According to legend, the ancients named each time according to the time of animals in the China Zodiac.

12 hour system It was used in the Western Zhou Dynasty. In the Han Dynasty, it was named midnight, crow, Pingdan, sunrise, food time, corner, Japanese, China, sun, sun, dusk and people. It is also represented by the twelve earthly branches, with the midnight from 23: 00 to 1: 00 as the sub-hour, 1: 00 to 3: 00 as the sub-hour, and 3: 00 to 5: 00 as the Yin Shi time, which are circulated in turn.