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A bell signals the start of the first class of the morning at 9 a.m.
There are two long morning classes with a short break in between them for students to get to their next class. After lunch, classes resume at 1 p.m., and there is a break around afternoon teatime before another class period. The classes are about one hour in length, with occasional double periods lasting two hours. Classes end around five o'clock. First year students get Friday afternoons off, while sixth- and seventh-year students have several free periods during the week. In the evening, students eat their dinner in the Great Hall, after which they are expected to be in their common rooms. Astronomy classes take place late at night in the Astronomy Tower.