The year is divided into three parts. The first one is Michaelmas Term, which is from October to December and takes its name from St Michael's day and Christmas. The second one is Lent Term, and goes from January to March. The last one is Easter Term, from April to June. Within these times, there is a period of 8 weeks called "Full Term". Most lessons and exams happen in Full Term. All students need to live in college for this period. There is a University rule which says that students can get their degree only if they have stayed for at least 9 terms (3 years) at a distance of less than 10 miles from the main Church in Cambridge.