Data license
The public holiday API is open data. School calendar data shown on this site is for personal use; broader, programmatic, or commercial use requires permission.
Public holiday API
The Finnish public holiday JSON API may be used under CC BY 4.0. The public holiday API does not include school holiday data.
School calendar data
School calendar pages are provided for reading on this site. Request a data license first if you want to use school holiday data in a product, service, report, integration, bulk dataset, or AI system.
Uses that need permission
Request permission or a data license before you:
- collect school calendar data automatically or in bulk
- publish, share, sell, or embed the data in another product
- use the data in AI services, model training, or other automated systems
- use the compiled school holiday data commercially
Machine-readable notice
School calendar pages tell automated tools that text and data mining requires permission. The machine-readable notice is available at /.well-known/tdmrep.json.
Request a data license
Tell us what data you need, how you will use it, which municipalities and school years you need, and the delivery format you prefer.