Ok, that's going a bit far.
Time travelling will not "break" your computer. It might "break" your game in terms some things not happening in your game because you time traveled, but it will not be likely to break your computer.
Realistically, it could cause your time sensitive software to expire. Anything that has a yearly membership might ask you to renew, any 30day shareware trials will expire, etc etc. Most importantly, it may cause your anti-virus to expire, and without anti-virus, your computer might get infected and you might eventually need a system reinstall. But that's a slippery slope argument.
In Animal Crossing Wild World, a lot of people time traveled, and it was later revealed that setting the time forward had some weird consequences like certain events not happening at all, some characters refusing to show up, not being able to trade in the turnip market because the prices are always not profitable. To stay on the safe side, I didn't even change the clock for daylight savings time so I was an hour behind on the clock for half the year.
What happens when you time travel in VF? Who knows. I'd rather wait around and see if I win the lottery.
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WIP VF mods on minutegamer.wordpress.com
Dark Interface * Here Comes the Sun * Glowing pick-up-ables