With this information, you can calculate the quantity of hours 620 days is equal to.
¿What is the inverse calculation between 1 hour and 620 days?
Performing the inverse calculation of the relationship between units, we obtain that 1 hour is 6.7204301e-05 times 620 days.
Which is the same to say that 620 days is 14880 hours.
Six hundred twenty days equals to fourteen thousand eight hundred eighty hours. *Approximation
A hour is six times six hundred twenty days. *Approximation