George : Two return tickets to London please. What time will the next train leave?
Attendant : At nineteen minutes past eight.
George : Which platform?
Attendant : Platform Two. Over the bridge.
Ken : What time will the next train leave?
George : At eight nineteen.
Ken : We've got plenty of time.
George : It's only three minutes to eight.
Ken : Let's go and have a drink. There's a bar next door to the station.
George : We had better go back to the station now, Ken.
Porter : Tickets please.
George : We want to catch the eight nineteen to London.
Porter : You've just missed it!
George : What! It's only eight fifteen.
Porter : I'm sorry, sir. That clock's ten minutes slow.
George : When's the next train?
Porter : In five hours' time!