Every Hilary (spring) term on the Saturday of 4th Week, second-year members of the College celebrate 'Midway' to mark the point at which they are exactly halfway through their degree (given that students on 3-year courses attend for nine terms, each of duration eight weeks...). The occasion is marked with the taking of professional photographs: one in formal dress (but not gowns), and the other in costumes made by the students, usually reflecting themes decided by individual groups of friends. Later in the day a meal is served in Formal Hall to distinguish the event.