We have time changes here in the UK too. We are used to them because they are a set thing - but if you forget about them, it can be a pain. I worked a night shift on and off for two years when I was younger. When the clock went back we used to have to work from midnight to 8am (which was the standard shift), and at 8am, they would dial back the clock to 7am. We would then have to work an extra hour (which we got paid for) before the next shift would then start at 8am. That extra hour was a killer !