They work so hard, day and night, three or four jobs some of them.
He works day and night for two months at a stretch.
Most of the time I work nights, so my days are free.
So we're working day and night trying to get the beta out the door.
You can't expect a man to turn out discoveries to order, I'm working almost night and day now.
I'll be working day and night for 10 or 15 years.
He often worked seven days and nights a week, with no vacation.
Those of us who were willing stayed after school and worked nights for several days to help him get the job done.
She showed him where crews would have to work day and night for weeks to tunnel through rock.
How Gavin had to work late most nights these days.
