how long does it take vor a Pokemon to appear if you put honey on thee tree
Once Honey is slathered on one of the trees and at least 6 real-time hours have passed, a Pokémon may appear on the tree. If a tree is left unchecked for 24 hours, both the Honey and any Pokémon will be gone. Changing the internal Nintendo DS clock will have no impact on the progression of these 6 hours.
Bulbapedia It'll take 6 hours for a Pokemon to appear in the honey trees.
http://bulbapedia.bulbagarden.net/wiki/Honey#Overview Hope it helps.