NOT PATCHED YET
(Please post if this technique has been patched)

This technique has only been tested on PC. I have no idea if it works on any other devices.

If you want to gain hours fast by AFKing, you can by doing a simple step on the PC Flash client

When AFKing, you will eventually be disconnected and not gain any hours, but there is a way where you can be disconnected, and STILL gain hours

First step is to find an AFKing spot, I prefer the Battle Arena


After finding a place to afk, open up your profile, like so



and leave it open while AFKing, this will allow you to gain hours even when the idle screen comes up!

Benefits:
AP increase
Hours increase