* Zone A: This zone typically starts school in early September and has holidays around All Saints' Day (early November), Christmas/New Year, February (Winter break), spring break (around Easter), and summer (July/August).
* Zone B: This zone's school calendar is shifted slightly compared to Zone A, meaning their holidays fall at different times.
* Zone C: This zone's school calendar is also shifted, again different from both Zones A and B. The holidays are staggered so that not all schools are on holiday at once, easing pressure on transport and tourist areas.
To get the *exact* dates for a specific school year, you'll need to check the website of the relevant Académie (the regional educational authority). You can find these by searching online for "[Name of region] Académie". For example, "Académie de Paris" for schools in the Paris region.
In short, there's no single answer, but the above gives you the general framework. Looking up the specific Académie is necessary for precise dates.