The answer of six years has been given, but that may not be what you are asking. School hours. Primary schools are required by law to provide 940 hours of tuition per year, however individual school hours can vary. UTRECHT, The Netherlands — Last summer, when the Dutch government debated mandating that all schools provide three hours of physical education a week to students, Jasper Bunt, principal at a Montessori school called Oog in Al, argued against it. An example of normal school hours is 8:30 to 15:30, although VWO might have a lesson period after that (until say 16:15). The Netherlands also offers a high standard of special needs education for students that require extra support. Classes are held from Monday to Friday. School hours will be between 8 and 5 in most schools, but there are exceptions on that too. Added: In most schools for kids 12 to 16/18 they will have about 30 hour, of 50 minutes … More information is available on the government.nl website.