Typically I'm not reading a full book unless the work has slowed down. So for me it's Spring Break, Summer Break and Winter Break. When the game has stopped, my brain is ready to take on new information. It seeps in and I can be more reflective.
As an educator you are constantly talking about the importance of reading to students. If you yourself are not popping open a book once in a while, then you're not exactly walking the talk. Also, it just makes life more interesting and it makes me more interesting because I always have something to talk about.