Privacy policy
Privacy information for site analytics, advertising, local browser storage and third-party data requests.
Information processed
The calculators run primarily in your browser. Selected settings may be stored locally so the site can remember your choices. We do not require an account.
When analytics or advertising is enabled, consent and processing are handled under the choices shown to you. Third-party services may receive technical request data such as IP address and browser information.
External services
Public-holiday data is served from this website and sunrise and sunset are calculated locally in the browser. No external holiday API is contacted by visitors. Google Analytics and Google AdSense are loaded only when configured for this site and subject to the applicable consent setup.
Contact
Use the contact page for privacy questions or deletion requests.