The ancient Babylonians are responsible for time as we know it. Now we call this area Iraq.
It started with dividing a circle into 360 degrees in 3000 BCE by the Sumerians. They also divided the calendar into 12 months in 2400 BCE.
Around 1500 BC, Egyptians divided the day into 24 hours, though the hours varied with the seasons originally.
Greek astronomers made the hours equal. Between 300 to 100 BC, the Babylonians subdivided the hour into base-60 fractions: 60 minutes in an hour and 60 seconds in a minute. The base 60 of their number system lives on in our time and angle divisions.
Just consider: you can always make more money, more creations, more learnings. But you can never find more time. It’s gone, past, spent. Are you making the most of your time? Can we help you to do just that?
Principle source: http://www.webexhibits.org/calendars/calendar-ancient.html