I just looked again at the original post in this thread. As well as admitting cheating by changing the system clock,
... thers too much getting sick here, every time i tune back to check someone was sick, not soo great when you have 90 villagers.

...
I'm not surprised there are sick villagers. They like to keep warm, and
will catch cold if the fire goes out. Messing with the clock is a surefire way to lose the fire, if you'll pardon the expression.