The smell surprised him: he came from a world and time unused to the stench of toxic chemicals.

When they return, then the clock stops running, and the person does not overpay for time unused.

While that seemed efficient, it meant that planes sat waiting for others to arrive, meaning hours of unused time.

Compared with the big obligations the city had to book for that unused time, substituting free retiree health care seemed cheap.

But at the same time, a computer voice warned, loudly, "Credit will not be given for any unused time."

The remaining unused time could then be rented to other stations, who would broadcast through the physical station's hardware.

Companies often offer incentives to encourage workers to take vacations because the unused time is treated by their accountants as debt.

To fill the unused time, Paul Shaffer will play a nightly concerto.

One instance when the state compensates for time unused is for vacation.

Since you put it as you did, I canceled it against your unused time.