How to calculate the ancient time?

1, purple stone (from 23: 00 to 0 1: 00)

2. Ugly time (0 1: 00 to 03: 00)

3. Yin Shi (3 am to 5 am)

4. Shi Mao (05: 00 to 07: 00)

5. Chen Shi (07: 00 to 09: 00)

6. Sixi (09: 00 to 1 1: 00)

7. At noon (from 1 1 to 13).

8. Out of date (from 13 to 15).

9. Application (from 15: 00 to 17: 00)

10, unary time (from 17 to 19)

1 1, Kistler (from 19 to 2 1)

Shihai 12(2 1:00 to 23: 00)

Extended data

The Origin and Transformation of Ancient Time

It was used 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.

Tracing the origin of these words from China's pre-Qin ancient books. Before the Han Dynasty, these appellations were different. Until the early Han Dynasty, China had been implementing the taichu calendar Law. "Twelve o'clock a day, the main subject is the subject."

There are twelve hours in a day (two hours in modern times), eight minutes in an hour (15 minutes in modern times), three teas (five minutes in modern times), one tea and two fragrances (two minutes and thirty seconds in modern times) and one fragrance for five minutes (thirty minutes in modern times).

Baidu encyclopedia-twelve o'clock