But having read this time scaling idea, I can see how the Maxis system is logical in itself.  If we go ahead and say Neighborhood time is 1:365 (or something like that, since the average age of a Sim is about 71 game days, and Human beings live for close to that amount, but in YEARS), then popping out for a night's entertainment really is a non-event.  So, yeah, I can live with the built-in time behavior, now that I understand what's happening.  The problem is, the different time scales aren't properly indicated when they're in effect, so everyone just assumed (like I did) that time was constant, and that Maxis was cheating by giving back the hours we spent on the community lots.

When I entered the lot with the hack installed, the carpool was behind the bus.  At approx 8:45 as the dad and daughter were almost to their vehicles, their vehicles drove away.  I tried this several times and realized the last time that a nearly invisible clone of the dad stepped out of him and climbed into an invisible car that sat in front of the bus.  I closed out without saving and reloaded the game at least 3 times.  Each scenario ended with Dad missing his carpool and the daughter missing the bus.

When I took the hack out and loaded the game, this time the carpool was in front of the bus.  Dad and daughter both made it to their vehicles just before 9am and drove away.

ok I found something:
I sent two sims with 2 dogs to the park, maxis car. When I was back, the two sims needs where static as intendet but the pet bars kept droping, I hat to use tentingcheats to get them up or they would have been taken away.
I also noticed the speed keeps turning back to 1, but thats no big deal.