1, son (23: 00 midnight to 1: 00):

The last moment of a day is also the beginning of a new day.

2. Ugly (65438+ 0 am to 3 am):

Ugly time refers to the dark stage before dawn. It is said that this is the time when cows begin to plow at sunrise.

3. Yin (3 am to 5 am):

In a day, when the sky becomes clear, it is the moment when the tiger begins to move, so it belongs to the tiger in the zodiac.

4. Gross (5: 00 a.m. to 7: 00 a.m.):

Shi Mao is the time when the sun rises and begins to shine.

5. Chen (7: 00 am to 9: 00 am):

The time when the sun and heat increase in the morning is said to be the time when the dragon goes west, so it belongs to the dragon in the zodiac.

6. (9: 00 am to 165438+ 0: 00 am):

At this time, the sun's light and heat become stronger, belonging to snakes in the zodiac.

7. Afternoon (a.m. 1 1 to p.m. 13):

In a day, the sun is the strongest.

8. No (from afternoon 13 to afternoon 15):

At the end of the day, the summer heat will disappear.

9. Shen (from afternoon 15 to afternoon 17):

In another day, the heat of application will soon pass.

10, unitary (from 17 pm to 19 pm):

In a day, Youshi is the time when night comes.

1 1, and (from 19 pm to 2 1 pm):

During the day, the night spreads and the lights are brightly lit.

12, Hai (2 1 pm to 23: 00 midnight):

In a day, the vicissitudes of life are the end of the day, and it's time to move on to tomorrow.

Extended data

The origin of the twelve-hour system:

The origin of the twelve-hour system can be traced back to the Spring and Autumn Period and the Warring States Period. People began to apply the calendar name of 65438+ February to astronomical orientation. North is the child position, south is the noon position, east is the base position, and west is the unitary position. Day and night, the sun moves in the direction of 12 and returns to its original place, thus creating the concept that the sun is located in one hour, and a day and night is 12 hour, so people can use the position of the sun in the sky to determine the time.

This timing method has been accepted by people and is still in use today. In the biography of Yongfeng in the Han Dynasty, there is a saying that the sun added Shen in the first year of the Yuan Dynasty, which means that the sun was applied for Shen, and then it was further simplified to "noon". , and named after the twelve earthly branches. In addition, people also use more vivid nicknames, such as "Midnight, Cockcrow, Pingdan, Sunrise, Eclipse, Corner, Daylight, Sunset, Dusk, People Decided", which correspond to twelve o'clock, such as Zishi, Ugly Time and Yin Shi.

Baidu Encyclopedia-12 hours

People's Network-A Brief History of Twelve o'clock