I spread my interviews throughout October, Nov, Dec, early January. I went on a lot of interviews so I still needed to use my vacation time for December and early January, where I had a number of interviews in a row. It definitely sucked to have to use my vacation time but I didn’t want to risk being given crap for being gone for half a rotation. I’m still doing my required school rotations right now while some people are almost done... I could have done them earlier, like Sept, but instead I did four psych sub-Is and I don’t regret it.
Ideally, you want some easy electives for Nov/Dec who will let you go on interviews. That way you can save your vacation time for the end.