Yes, I'm sure - I didn't actually change the time by entering numbers, I just used the up and down arrow to roll the clock forward and back, and I was fairly sure it changed the date by itself. If it didn't change the date though, and thinking it was going from 2300 to 0100 in the same day, then wouldn't it just be going back to earlier in the same day, then back to the correct time, so shouldn't cause a problem? More confused now - I'll have a look later and see what it does if it does change the date or not - with the game pused of course to prevent disater!