Time flies when you're having fun.

I was studying the whole time.

He is doing time in prison.

As time goes by, life begins to feel very short.

I went skiing for the first time.

While waiting for the train, I'm just killing time by reading a book.

She was having a big time at the party.

He is a big-time player in the world of soccer.

This is the all-time highest score in the history of the game.

Soldiers were ordered to march at double time.