However, eventually you’ll have to advance the clock a few days to get the same amount of lives, and this will become frustrating. We’ve also heard some players return to the game with a normal clock time set, and it says the wait is 300+ hours for more lives, as the game realizes what you’ve done.
We’ve heard in order to prevent the game from noticing, and adding 300+ hours to the clock do the same “time advance” cheat as above, start the game, then go back and set clock to automatic before you play. Use multi-tasking to go back to the game and play. It won’t register the change, and charge your the hours later.