The station went to 24 hour operations in 1970.

In a two hour operation she broke free from her tow line and smashed into the dock wall twice.

And last month Katya underwent her first two hour operation.

The new runway allowed the airport to start 24 hour operations in September 2007.

The station began 24 hour operation by 1980.

He required a 4 hour operation in a military hospital following injuries to his head.

She underwent a four and half hour operation and another year of speech therapy.

He died on November 11 after a five hour operation to harvest his heart and other organs for transplant.

One advantage of building a casino on a space station is that it can be a true twenty-four hour operation.

In the 36 hour operation, the first meal they had were the dates left behind by the retreating Pakistani soldiers.