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 zodiac.
Twelve o'clock consists of twelve specific time nouns. People can find the source of these words from the ancient books of China in the pre-Qin period. Before the Han Dynasty, these appellations were different. Until the early Han Dynasty, China implemented the taichu calendar Law. "Twelve o'clock a day, the main branch is the subject." (Zhao Yi's Examination of Jade Cong, Volume 34) Basic stereotypes and naming.
The first hour of twelve o'clock is called "midnight". People take "midnight" as an example of time noun, which was first seen in Zuo Zhuan's Sixteen Years of Mourning for the Duke: "Send it drunk, and send it at midnight."
At twelve o'clock, the twelve-point regimen of Huangdi Neijing is integrated into people's daily life through timing tools, reminding people of scientific regimen at any time and letting everyone know how to use Huangdi Neijing to carry out regimen and popularize scientific regimen, which is undoubtedly of revolutionary significance for improving people's physique and improving people's quality of life.
Extended data
The ancient ones are calculated by time.
19:00-2 1:00 is a watch.
2 1:00-23:00 is the second watch,
23:00-0 1:00 is the third watch,
0 1:00-03:00 is the fourth table.
03:00-05:00 is the fifth watch.
Note: "gēng" here is pronounced as "jοng" in dialect and "gοng" after Chinese standardization.
References:
Baidu encyclopedia-twelve o'clock
References:
Baidu encyclopedia-time