George works long hours after school in his father's market.
Hard work and long hours were what had got him where he was in the first place.
You work hard and put in long hours at the office.
Sometimes, these workers work long hours to get a project done on time.
He'd always worked long hours and saw no reason to stop.
I know I've worked long hours for the last two years.
Work about 20% longer hours per week than you do at the moment.
Others work longer hours and at different times during the day or night.
He was on the set doing very long hours for a couple of months.
I worked long hours with him and saw little of the outside world in the next few days.