How was the ancient time divided? What is the unit one level smaller than the hour?

Twenty-four hours a day in the zodiac is twelve hours, which is smaller than hours, and one hour equals eight hours.

Midnight 1 1 means "zizheng", and midnight 12/0 means "ugly early", 2 am, 3 am, 4 am and 5 am.

12 is noon, 1, not early, 2 o'clock, 3 o'clock, 4 o'clock, 5 o'clock, 6 o'clock and 7 o'clock.

incise

The leaky pot is divided into two parts: the sowing pot and the receiving pot. The seeding kettle is divided into two or four layers, both of which have dripping holes, and finally flow into the receiving kettle. The kettle has an upright arrow engraved with 100 minutes. The arrow gradually rises with the storage of water, showing the number of minutes to show the time. And a 24-hour day and night is 100 minutes, which is equivalent to 1440 minutes now.

It can be seen that each moment is equivalent to the present 14.4 minutes (of course, if the daily 120 moment in Han Dynasty is taken as the criterion, a moment is equivalent to the modern 12 minutes). So "3: 15 noon" is equivalent to noon 1 1: 43+ 12 seconds.