While a student, he lost his father and had to work around the clock to be able to support himself.

Work will continue around the clock for the next seven months.

I've been working around the clock for the past couple of days.

And the building's heart is in the right place around the clock.

They have worked around the clock to care for you.

Everyone was working around the clock to get these things done.

But the couple are usually on call around the clock.

Now the order's members are either in the hospital or on call around the clock.

They're working around the clock, and have been since we brought them up here three years ago.

For the past 4 days, they've been working around the clock and through the night.