With this information, you can calculate the quantity of days 13 hours is equal to.
¿What is the inverse calculation between 1 day and 13 hours?
Performing the inverse calculation of the relationship between units, we obtain that 1 day is 1.8461538 times 13 hours.
Which is the same to say that 13 hours is 0.54166667 days.
Thirteen hours equals to zero days. *Approximation
A day is one times thirteen hours. *Approximation