Yikes, that does seem a little extreme. I just finished a 101 course in our interim term (stupid natural science requirements, I'm in Engineering, isn't that enough science?) that was 3 hours a day 5 days a week and then 4 extra hours two days a week for three weeks. Not as bad as ALL day bust still not pretty. Great to get it all done and I kinda like not having other courses to distract you, but my days were all out of whack. Fridays we would have class for three hours in the morning, sleep, do something different in the afternoon, and then go to Wally-world or out to the movies at night and it would seem like we had a weeks worth of days in one day. At least we have Monday off, then I have a class for an hour and 45 minutes five days a week for a month, then two more the next month. At least we are moving starting Tuesday and Friday so we won't be at the end of the class, but it still out to be fun.
ETA: But on the brighter side, I have had time to actually READ books I want to read for once. Even if only because of that, it feels more like summer even with classes going on.