they probably die because you changed the clock, you're really not meant to... its probably actually cheating... in VV the mothers would get permanently stuck to their children..
I'm sorry if I'm notr very sympathetic, but it's like someone in a race taking a shortcut through the brambles and then complaining about the pain of all the scratches, all I can say is it's kinda your fault, I'm sorry for you but there's not much you can do about it because technically, your in the wrong...
There may be a backup file if you look hard enough but other than that I'm stumped