Yes, I have interviews at three schools in the second half of December. The schools had no problem with me scheduling them at that time. I did so becuase I wanted to be able to finish finals and not miss any more class than I had to.
Most schools actually CLOSE during this period. SO you will most likely NOT be able to interview between Dec. 22nd and Jan 4th I think.
I have two scheduled: one on dec 19 and one on dec 21st. That is the last day most will do them 🙂