How many hours are there in 24 hours a day?

24 hours a day is now generally divided into 8 hours in the morning (including morning and morning), 8 hours in the afternoon (including morning, noon and afternoon) and 8 hours in the evening (including evening and evening). The specific time period is as follows:

Morning: 0: 00 to 5: 00; Morning: 5: 00 to 8: 00; 8 am to 165438+ 0 am; At noon: from 1 1 to13; Afternoon: 13 to16; Evening: 16 to19; Evening: 19: 00 to 24: 00.

In ancient times, a day was divided into 12 hours, and the earthly branch was used as the time name. There was an ancient custom to call it. The beginning of an hour is midnight.

Extended data:

In ancient times, time represented time. Time is divided by people according to material movement, not inherent. There is no time in the universe. It takes time for materials to move.

But if we don't divide "time" into spaces, our thinking can't recognize "time". The reason why we can think is that thinking can name the material world, while things are real, thinking is empty, and thinking about life and things is empty.

In ancient times, copper pots were used to detect leakage, and the following leakage points were named. A shift is divided into five points, so the length of a point is 24 minutes. For example, the ninth journey to the west: "It is said that after Emperor Taizong woke up, he never forgot. It's already five drums and three o'clock, and Taizong has set up a court to gather two classes of civil and military officials. " "Two o'clock at midnight" means midnight11:48; "Five drums and three o'clock" means 04: 12 in the morning.