During 2026, automated access to Feiertagskalender.ch has increased enormously. More and more bots, AI applications and AI agents retrieve our data to carry out tasks for businesses and individuals. In October 2026 alone, we recorded a total of over 19 million page views – by people and automated applications.
People receiving information or automating their planning may not even realise that our public holiday and school holiday data is being used. The work behind it is even less visible: we have been researching, checking and updating this information since 2003.
We want to make this use possible. At the same time, we need to fund the work it relies on.
This creates a contradiction: instead of putting all our energy into the quality and availability of our data, we have to spend a substantial part of it controlling automated requests and limiting unpaid bulk use.
Your support helps us continue to maintain the data carefully and keep it available in the long term.
One-off or monthly – choose the amount and payment method on our Payrexx page.
Transport companies use it to plan staff assignments, vehicles, train formations and timetables. Energy producers forecast energy demand. Building operators control heating and lighting according to school holidays and public holidays.
Shops and suppliers calculate delivery dates. Businesses plan food supplies for everything from small village shops to large supermarkets. Tourism businesses calculate offers and holiday home prices.
Software developers integrate the data into planning tools. Clubs and scouts plan their activities, and scientific projects use it for research. AI applications also rely on accurate, up-to-date information.
Whether in transport, energy supply, deliveries or leisure, public holiday and school holiday data provides an often invisible basis for decisions that shape our daily lives. It helps target resources, reduce costs and operate reliable infrastructure.
In our view, providing this basis for planning should be a task for public economic development bodies. But their responsibilities stop at cantonal or national borders – our data and its benefits extend beyond them.
As a result, the financial burden of work that benefits many rests with a small team.
Your support helps us research sources, check information, keep track of changes and reliably operate the website and data services.
To ensure our work can continue in the long term, we want to train another person, share knowledge across the team and secure ongoing data maintenance. AI can help with research; the results still need to be carefully checked.
Every contribution supports our ongoing work. Monthly contributions also help us plan more reliably. Decisions about additional staff and improvements are based on the funds actually available.
Wider free use remains our aim. How far we can open access in future depends on sustainable long-term funding. Your contribution supports the existing service and its development; it does not come with a promise of fully open access. Existing offers and terms of use remain in force.
Do you find Feiertagskalender.ch useful? Help fund the work behind it. Thank you!
One-off or monthly – choose the amount and payment method on our Payrexx page.
Contributions support Feiertagskalender.ch, operated by psc Peter Schütz Informatik-Dienstleistungen. They are not tax-deductible.
Peter Schütz and the Feiertagskalender.ch team
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