I saw that they have them in January. I meant at my school in the US, we always have our Fall exams at the end of the semester, so when we go on break, it's done. When we start in January, it's the beginning of the Spring semester and new classes.
They wrote me at Sussex to say if I need to make return reservations, anytime after Dec 12th would be fine. I don't know what I'm doing but I have to make it round trip for now.