You can delay it. It should be on the jury duty sheet.
I used to get called in the middle of the semester. I kept getting it delayed and told them to call me during the off months. Like clockwork I would be called to report during the semester.
Once I didn't even get the JD notice. I got a notice that said I failed to appear and my time was rescheduled. I panicked and called in and they said not to worry, nothing bad would happen the first time I did that.
