>>Must be damn confusing if you go for a walk and accidentally cross the line!!!
>
>Even MORE confusing if you have an appointment across the line. Or maybe just a good excuse for being late ;-)

A serious question:- Where are the time lines? Here in Britain we only have two time zones - awake and asleep. It's easy to know where the line is there. The only time line I've crossed is going to mainland Europe across the English Channel.