Post Office

Majora's Mask
The Post Office is located in West Clock Town, as depicted in Majora's Mask. It is open from 3 P.M. to 12 A.M. on the First and Second Day. The Postman resides here, and can usually be seen mentally training on his bed. Link may receive a Heart Piece for playing a game with the Postman. The game is won by stopping a timer at exactly 10 seconds. Equipping the Bunny Hood during the challenge keeps the timer, which normally becomes invisible after 3 seconds, on the screen. On the wall can be seen a calendar, a map, and a clock. There is also a dressing room in the back where the Postman keeps his hat and backpack.

The Wind Waker
The upper part of Dragon Roost Island in The Wind Waker is mainly used as a Post Office, where Koboli is managing and sorting all the incoming letters. Link can play a mini-game here to eventually win a Piece of Heart.

The Minish Cap
The Hyrule Post Office in The Minish Cap is where Stamp and Marcy work. There isn't much to do there early in the game but later, after fusing certain Kinstones, Link can buy the Swordsman Newsletter published by Swiftblade. They contain secrets and techniques for playing.