Just under a day of game time. Well actually probably closer to 20 hours, since I beat it Saturday, and that is my current time. It was good, and most of that was time spent grinding for the fourth gym and her freaking Emolgas. Then I found the way to bring up event pokemon, and I used a lvl 50 Celebi to own her, until it almost died from not listening to me.
This was beating N/Ghestis BTW. Have yet to do much else, save for getting Kyurem.