The fire was discovered in the back part of the building during school hours.

As a student I obviously do many activities during school hours.

However, I also do many activities in my own time, out of school hours.

My father had a theory about the long school hours.

These are run either before, during or after school hours.

Students are given treatment in the health bay during school hours.

It now has its own sports hall which is also open to public after school hours.

Who will care for the children when you are at work after school hours?

During school hours they also have programs for students who are still learning English.

I saw a boy on the street sitting by himself during school hours; he was about 13.