To this day many people use various systems besides the decimal one.
I was surprised to read that "Old Babylonians used the system based on 60":-)
Do not we all
use their system today? Not only for time but for angle measurement?
When the French revolutionary government introduced the decimal system as a standard, they also
tried to reform the angle and time measurement.
10 hours in a day and 10 in a night, 100 minutes
in an hour, 100 second in a minute. For the angles: 100 degrees in a right angle, 400 in a circle, each degree is 100 minutes of arc, etc. This is why kilometer was defined as
1/400000 of the meridian. It is nothing but the "decimal minute".
(The nautical mile is one "Babylonian minute" of the meridian). Clocks, watches and angle measuring instruments with decimal scales can be found in museums.
But this did not work. So we still use the Babylonian system.
Now, how many inches are there in a foot? How many ounces in a pound ?
Not everyone uses decimal system today.
An interesting system is used for angle measuring in artillery. The circle is divided into
6000 parts. This is convenient for quick estimation of the distance to an object of known size, using the crude approximation pi=3.
There was an attempt to introduce the system based on 8 for everyday use. (Charles XII of
Sweden). This did not work.