The clock hours of the museum are from 9 AM to 5 PM.

The astronauts traveled for several light hours to reach the space station.

I spent many monkey hours working on that project.

The lunch hours at the office are from 12 PM to 1 PM.

I am taking 15 credit hours this semester.

The generator produced 1000 horsepower-hours of electricity.

I have very few little hours left to finish my project.

I couldn't sleep, so I stayed up until the wee small hours.

We partied until all hours.

She was hired on a zero-hours contract.