9 a.m. to 11 a.m.
9 a.m. to 11 a.m.
S ì sh í refers to 9 am to 11 noon. For example, "Huainanzi astronomy training" says: "as for Hengyang, it is called Yuzhong." Therefore, it is also called Yu Zhong. According to the natural law of the sun, the change of sky color, and their daily production activities and living habits, the ancient people summed up and created the twelve hour. It is not only a great contribution of the Chinese nation to human astronomy and calendar, but also one of China's splendid cultural treasures.
interpretation
Yuzhong, also known as riyu, etc.: the time near noon is called Yuzhong. (9 a.m. - 11 noon). The snake was hiding in the grass at this time.
source
The ancient Chinese divided a day into 12 hours, and each hour was equal to the present two hours. It is said that the ancients named each hour according to the time of animals in the zodiac.
historical origin
Twelve hour system. It was used in the Western Zhou Dynasty. In Han Dynasty, it was named as midnight, Jiming, Pingdan, sunrise, Shishi, Yuzhong, rizhong, Riyi, Bushi, riru, dusk and rending. It is also represented by twelve local branches, with midnight 23:00 to 1:00 a.m. as the sub hour, 1:00 to 3:00 as the Chou hour, and 3:00 to 5:00 as the Yin hour.
9 a.m. to 11 a.m.