You can look on the "Interview Offers" thread and see the dates for interviews last year. It seemed like there were quite a few that had Dec (and even a few with Nov) interview dates. Some places offer multiple interview dates (eg a December and January date) so that you could try to schedule the date after your rotation is over, but I would not want to have to ask for any time off to travel for interviews. I feel like I would need to be fully committed during my month at a program.
This is coming from a current MS3, though, so there may be folks who have been through this and can offer better advice.