The UK education system consists of state schools that are free, private schools that require payment, and grammar schools that require passing an exam at age 11. Children attend nursery from ages 0-4, primary school from ages 4-11, secondary school from ages 11-16, and sixth form or college from ages 16-18. Education is compulsory from ages 4-16. The school year runs from September to July and there are school holidays in October, Christmas, February, and Easter, as well as a six-week summer holiday. Exams are given at various stages including GCSEs and A-Levels. The typical school day lasts from 9am to 3:20pm with lessons lasting 1 hour and 15