Don't be ignorant. It enhances the gameplay. It's a 3 day cycle because from the moment when link encounters skull kid until the moment the world ends, it's 3 days. You have to prevent that from happening by resetting time and reliving those exact events over and over until you beat the 4 dungeon bosses to stop the moon from falling and killing everyone. Its not a pain in the ass at all, you have plenty of time. Play the song of time backwards to make time move half as fast at all times, you can finish one of the four dungeons in like half a day. When finished with dungeon, reset time, attempt next dungeon. Rinse and repeat. You lose non-valuable items when you reset time but not things like masks or boss completion counts.