Privacy Policy
Last updated: October 2026
The short version
Everything you type into our calculators and calendars is processed in your own browser. We do not send it to a server, and we do not store it. There are no user accounts.
What is stored on your device
The site saves a few small preferences in your browser's local storage: light or dark mode, and the text you type into the printable calendar (notes in the days). This stays on your device and is never sent to us. You can clear it at any time through your browser settings.
Server logs
The site is served by Cloudflare. Like most web hosts, Cloudflare processes technical data such as IP address and browser type to deliver the pages and protect them from abuse.
Advertising
We may show ads from Google AdSense to keep the tools free. Google and its partners may use cookies and similar technologies to show and measure ads, and to personalise them where you have given consent. In Norway and the EEA you are asked for consent before personalised ads are used, and you can change your choice later. You can also read how Google uses data at policies.google.com/technologies/partner-sites, and manage ad personalisation at adssettings.google.com.
Your rights
Under the GDPR you may ask what data is held about you, and ask for it to be corrected or deleted. Because we do not keep personal data from the calculators, there is normally nothing to delete. For data held by Google, use Google's own tools.
Changes
If this policy changes, the new version is published on this page with a new date.