Well, isn't that a happy little question! If we think about it, there are 24 hours in a day. So, to find out how many days are in 504 hours, we simply divide 504 by 24. And when we do that, we find that there are 21 days in 504 hours. Just a beautiful little calculation to brighten your day!
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504 hour in 21 days
504
1 day = 24 hours 7 days per week = 168 hours 3 weeks = 504 hours. Final answer = 504 hours.
There are 504 days in 72 weeks.
10 + 7 + [(24 x 7) x 3] = 17 + 504 = 521 hours