The sun dials is one of the first tool that we human have to tell time. Most of the activity that we do is done when there is light and the biggest source of light is the sun. The ability to differentiate time is extremely important in our daily live.
The Sun gives us a rough information about time in which we can tell about when is morning, afternoon and the time it became night.
The System that we use today to tell time has develop far greater than what the ancient people used to use
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