Why is time measure using 60 seconds in a minute, 60 min. in an hour, and 24 hrs. in a day?

Answer 1

A day is the length of time for the earth to rotate once on it's own axis. Early man looked for ways to measure time. One of the earliest was counting one's own heartbeats - about 60 beats per minute on average. Another technique is to set up a water dripper, which drips one drop each second.

Early man also recognized that the sun passed across the sky and that it was dark about the same amount of time.

Using a simple number system which is based on 6 as a fundamental increment, time was defined as 60 seconds per minute and 60 minutes per hour, with 6 hours in each of the 4 quadrants of the day and night.

Answer 2

Babylon had a base 60 math system.

Answer 3

This whole thing is left over from the ancient Babylonian system.