With this information, you can calculate the quantity of days 90 minutes is equal to.

¿What is the inverse calculation between 1 day and 90 minutes?

Performing the inverse calculation of the relationship between units, we obtain that 1 day is 16 times 90 minutes.

Which is the same to say that 90 minutes is 0.0625 days.

Ninety minutes equals to zero days. *Approximation

A day is sixteen times ninety minutes. *Approximation