Well, if I know my Video Game History, I'll have to go to the four corners of the world, collect a whole bunch of masks, kill 4 giant creatures in this order: a jungle warrior, a mechanical bull, a mechanical fish, and twin flying centipedes. Then I have to go to the top of a clock tower, summon 4 giants who can hold the moon telekinetically while I fight a mask that turns into some f'd up version of an evil spirit dude.
And I'd have to do it in... 3 DAYS!!!???!? Ughh there goes my weekend. Better wash my tunics, polish my shield and see if I can borrow that Kokiri sword again. (hmm I haven't used that thing since that king of thieves guy from the desert started F#%^ing things up).
EDIT: I'd also play Dark Side of the Moon 40-ish minutes before the fall. Who needs the song of time when you've got Pink Floyd?