Quote Originally Posted by Sservis View Post
Mirai has commented that as a tank, 3-4 days gave 70,000 jp. I'm not sure how many hours it was each day, but this is the fastest way to do this outside the game as there's no limit on how many times you can do this in a day or month.
Honestly, I didn't keep track of the time, but I'd say a solid 6-8 hours per day broken up throughout the day as I did other things (like feed myself and workout). It all depended on the groups I was getting and I think I farmed a third of the JP I needed just in one single day because I had a Healer that was queuing with me, knew how I pulled entire instances, and could keep me alive. It was then up to the DPS to not be dumb, adapt quickly, and be doing more than a measly 10K DPS.

With a good group you should be able to do most heroics in 5-10 minutes granted you're not stuck listening to NPC RP (e.g. Siege of Niuzao Temple).