This past week they were closing at 11:00pm. I'm not sure what time they opened, but by 7:30am when I went down they were in full swing. Don't forget to buy the refillable mug. It is WELL worth the $10!
We were there during Christmas week and Easter week, so they may have been open a little later for the peak weeks. Or of course, I could be mistaken about the closing time. It's been know to happen to me.