PeteEU has given a lot of misinformation about the French school system suggesting that they end at 5-6 and not mentioning the 2 hour break, so he can defend his point. This is how the French school system actually work.
So in fact French students have about 28 hours per week. American students (not in Saudi Arabia) have normally 30-35 hours per week, and they do 1-2 hours of homework each day. Banning homework will be just as beneficial as the 75% tax rate.France
The school day in France typically runs from 8 a.m. to 4 p.m., with a half day on Saturday, although students do not attend school on Wednesday or Sunday. Lunch is a two-hour break for public school students. Students usually attend school from ages 6 to 18. The average number of students per class is 23. Uniforms are not required, but religious dress of any kind is banned. The school year for this country in the northern hemisphere stretches from August to June, and is divided into four seven-week terms, with one to two weeks of vacation in between.
Read more: School Years around the World — Infoplease.com http://www.infoplease.com/world/statistics/school-years.html#ixzz29wtRL8V