When was the last time?

Twelve-hour system was adopted in the Western Zhou Dynasty. In the Han dynasty, it was named midnight, crow, pingdan, sunrise, food time, corner, day, sundial, sunset, dusk and people's decision. 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.

One hour late is one of twelve hours, also known as sunset, sunset and sun center, and afternoon is the best rest time. Twelve o'clock is a way of timing in ancient times, with twelve branches as the unit, namely Zishi, Choushi, Yin Shi, Shi Mao, Chen Shi, Shi Si, Noon, Weishi, Youshi, Xushi and Shihai.

The meaning of twelve o'clock

There were no clocks and mobile phones in ancient times, so 24 hours were represented by the ground, and one hour was two hours. Midnight to 1 o'clock in the morning, that is, 12 to 1 o'clock in the morning, then 2 am, 1 o'clock to 3 am, 4 am is Yin Zheng time, and 3 am to 5 am is 3 am.

Before sunset, it was called the sun shadow. Twelve o'clock was summed up by the ancients according to the natural weather, daily habits, production activities and living habits of the day. Twelve o'clock has a unique history and a long history. It is an outstanding contribution of China people in astronomical calendar and a splendid cultural heritage of China.