That's odd. Mine is more reliable than the one my cable box shows.
 
Any games that you play that use the clock in any way?

Wii time is different to Earth time.

Doesn't sound like it's fast, it wouldn't stay at 4 mins if it was going faster, it would keep increasing. Maybe there's some sort of online time synchronisation feature whose server differs from your home clocks by that much?

Dude, woah, that happens to me too! 
 
Usually 2-4 minutes faster. I just turned on my Wii and it was two minutes faster than my laptop clock and phone. 
 
I also play Animal Crossing City Folk.

By the time I turn on my wii again it will probably ask me to re-enter the time anyway.

The Wii has finally become self-aware.

" The Wii has finally become self-aware. "

" The Wii has finally become self-aware. "

" @rjayb89 said:

" The Wii has finally become self-aware. "

Ha, good thing mine is at a Nintendo Repair Center atm.   "

Something incredibly moronic involving a nintendo shop updater.

Mine works.