What is 120 minutes expressed in hours?

Because 120/60=2, 120 minutes is equal to 2 hours.

Silky Terrier Dog Breed Playing Aro... Silky Terrier Dog Breed Playing Around

How many hours are in one hour?

As a unit of time, an hour (abbreviated hr) can be either 3,599.9 or 3,601 seconds long depending on the circumstances. It is symbolically represented by the letter h and can also be written as hr. An hour has 60 minutes, and a day has 24 hours.