My interviews took about 5 to 6 hours. Most starting in the morning around 8 or 9am and went until the afternoon. Usually the last thing was an optional sit in on a class. I would not recommend doing more than one per day (even in the same city). Besides, it nice to take a look at the city you are in and get a feel for it, because you could be living there for the next 4 years. I loved Omaha, Milwaukie, Boston, and a few others. Good Luck!!