Tickets, Please.

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!