ITEMS NEEDED: Kafei mask, and be able to get into Ikana Canyon.
Day 1: 1:20-2:30 PM: In Clock town, pay a visit to The Stock Pot in a talk to the inn keeper, Anju who is currently on duty right now. Out of nowhere, she will give you a key and a room! Go upstaris and enter your room for a silver rupee.
Day 1: 2:00-7:20PM: After the postman visits, talk to Anju with the Kafei mask you get from Madame Aroma. Anju will ask you to meet her in the Kitchen at night.
Day 1: 11:30PM-5:00AM: Go into the Kitchen and talk to Anju. She will want you to deliver a letter to Kafei. Go drop it in a mailbox, and then wait for the postman to come and pick it up in the afternoon. When he gets to Kafei's hideout to deliver it, you will have a chance to sneak into the hideout.
Day 2: 5:00-11:00PM: When Kafei returns, he will explain to you about his sudden disaperance. He will ask you to delive a pendant to Anju.
Day 2 4:00-8:30PM/Day 3: 6:00AM-12:00PM: When Anju is working, stop by and give her the pendant. However, it isn't over yet!
Day 3: 1:00-6:00PM: Go to Kafei's hideout, and you will discover that the door is unlocked. Insdie, the Curiosity Shop owner will be there, and will tell you that Kafei has gone to Ikana Canyon, and will give you the Keaton's Mask, which allows you to talk to Keaton in patches of grass that move.
Day 3: 6:00-7:00PM: Get here at 5:00, so you can hide behind a rock with Kafei, so Sakon won't see you. Follow Kafei into the hideout, and Kafei will trip an alarm. Kafei will move blocks around in simple puzzles, and Link will battle enemies. This shoudn't be too hard, so once Kafei gets the Sun Mask, return to The Stock Pot inn.
Day 3: 4:30AM: Since, Kafei got the mask, Hurry up the stiars and into the room at the top. Inside, Anju and Kafei will reward you with, the Couple's Mask. Now, hurry outside and play the song of time, because as you can see, this happens mere minnutes before the end of the world!