Question

Why is there only 12 number in a clock

Answer 1

Explanation:

The 12 numbers signify the 12 hours. There are 24 hours in a day and two rotations of the clock means a whole day. It is a 12 hour clock. There are even 24 hour clocks now but they are mostly digital.

Answer 2

Answer:

But days are not useful enough on their own to help us count time because they are a bit too long. So we divide them up into smaller units called hours, minutes and seconds. The Ancient Egyptians liked to count in twelves and they divided the day into two lots of twelve hours – 12 for daytime and 12 for nighttime.