You'd have to have two clocks. One a timer the game runs on to time things like cooking, eating, etc so they work normally. Then you'd need a separate one that handles the sun going down, and a sim day passing. That wouldn't be so hard. The tricky part would be things like what time the mailman comes, or what time the Spice Festival starts. I assume you'd use the second clock. But what about all the sims wandering around your neighborhood? They are all programmed to show up at certain times. Second clock again? So at sim 2 o'clock they'd all walk by and be gone for a real hour. It would have to keep looping and looping, otherwise. Ambient Pizza Man after ambient pizza man would wander by. And what about needs? Are you going to slow down the decay on the bladder, or keep it the same? If you slow down decays but leave it so it only take a few real seconds to empty, pretty soon they have no needs for a real hour and game play falls apart. It's a lot more complicated than it sounds. You'd either have to slow down everything and sit and watch them eat for a real hour, or slow down nothing and watch them eat 5 dinners every real hour.
