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jackyyaplt

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  1. Hi all, I always ponder over the question on how our calendar was defined. Year is based upon our Earth rotating around the Sun, Month is based upon the Moon, Day is based upon Earth's self-rotation. So, why was Week defined as 7 days? Why 1 day is define as 24 hours? Why one hour is define as 60 minutes? Why one minute is defined as 60 seconds? Any thought and explanation would be greatly appreciated. Regards, Jacky
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