Who invented time and whole concept behind it, seconds, minutes, hours, and so on?
Answer:
Time was not invented by any one individual, but is a physical constant that exists outside of human civilization, such as gravity and light. Time has been measured since the beginning of human civilization and there have been findings of sundials and other forms of time measurement in countless archaeological sites dating back from as early as 4,000 BC. The ideas of seconds, minutes, and hours can be traced back to the Sumerians, and it is probably due to their forms of measurement that we use the 60 minute hour system today.