the same thing has happened to me, took all farmers away and ended up with a crop that wasn't coming in for 360 minutes!! needless to say, it wasn't easy to get them through that lol and no i wasn't messing with the clock, if i tried to figure that one out, my computer would probably rebel, it doesn't like me playing around normally, much less try to change time all the time (doesn't this mess with other applications on their comp? just wondering)