Please hurry up because we don't have time.

Calculate the total time.

The time complexity of this algorithm is O(n).

He was calculating in his head.

He was able to solve the complex calculation quickly.

I exercise at the gym for two hours every day.

What do you call 'time' in dialect?

I've been waiting for hours at that shop, but the meal still hasn't come out.

Have you checked the timetable for the new semester?

He was deep in thought, with a long pipe in his mouth.