Total hours on site per year for primary school children by country:
United States: ~1,260 hours (7 hours a day × 180 days)
Australia: ~1,235 hours (6.5 hours a day × 190 days)
United Kingdom: ~1,235 hours (6.5 hours a day × 190 days)
Chile: ~1,215 hours (6.4 hours a day × 190 days)
Colombia: ~1,200 hours (6 hours a day × 200 days)
Canada: ~1,170 hours (6.5 hours a day × 180 days)
France: ~1,140 hours (7.5 hours a day, but only 152 days a year)
Netherlands: ~1,140 hours (6 hours a day × 190 days)
Ireland: ~1,073 hours (5.8 hours a day × 183 days)
Japan: ~1,050 hours (5.5 hours a day × 190 days)
Spain: ~1,025 hours (5.8 hours a day × 175 days)
Germany: ~940 hours (5 hours a day × 188 days)
South Korea: ~940 hours (5 hours a day × 188 days)
Finland: ~935 hours (5 hours a day × 187 days)
Poland: ~875 hours (4.7 hours a day × 186 days)
Teaching/learning hours break down differently though as some countrieshavea lot of "infill", longer breaks, more assemblies etc:
Australia: 1,000+ hours
Colombia: 1,000 hours
United States: ~990 hours
Chile: 978 hours
Netherlands: 940 hours
Canada: 917 hours
Ireland: 915 hours
France: 860 hours
OECD Global Average: 805 hours
United Kingdom: ~750 hours
Japan: 750 hours
Spain: 742 hours
Germany: 700 hours
Finland: 650 hours
South Korea: 650 hours
Poland: 540 hours
https://www.hepi.ac.uk/events/launch-of-oecds-flagship-report-education-at-a-glance-2025-hosted-by-hepi-on-tuesday-9-september-2025/?hl=en-GB
There is no correlation between more hours and better results. Finland and South Korea have 35% less teaching time than the US yet, on international PISA exams (obviously taken latef on at about 15) they outperform US (and Australia).
OECD data sees that peak performance sits around 24 to 27 hours of total lesson time per week. Classroom hours past that threshold leads to diminishing returns, student burnout, and fatigue.
I know this thread was really about starting school again 4 or 5 or 6 but I think the length of the school day is too much.
It was one of the reasons why we started to home-educate. Rural school. First on the bus and last off...
A very long day at age 4.