How is it cheating when there is no winning or losing? And it's not really changing anything, except maybe increasing the fun.

Emma, it might be that there is not enough food in the fridge.
Also, speed it up by one or two hours and check back then do it again. More events/emails this way too.

Be careful about changing the computer clock though since it can disrupt other things on your computer especially anti-virus.
Also, make sure you pause the game when changing the clock back to the correct time.

AND last but not least, LDW don't approve of changing the time forward so if there are adverse results, that's your problem.