a fixed period of time during which people work, an office is open, etc.
ساعت کاری, وقت کاری, زمان کار
Opening hours are from 10 to 6 each day.
Most people in this kind of job tend to work long hours.
The library is open during normal working hours.
What are your office hours?
a hospital’s visiting hours
Britain's licensing hours used to be very restricted.
This is the only place to get a drink after hours .
You can contact me on this number out of hours .
see also after-hours, zero-hours