Terms and calculation disclaimer

By using the tools, you accept these terms.

Informational use

Results are provided for educational and general planning purposes. They are not a substitute for navigation, safety, legal, religious, or professional astronomical services.

Accuracy and availability

The implementation is tested within the limits described in the methodology. Software, reference data, time-zone rules, and hosting may change. No uninterrupted availability or fitness for a particular purpose is guaranteed.

Acceptable use

Do not use automated requests in a way that disrupts the service, attempts unauthorized access, or bypasses operational controls. The public web pages are not an unrestricted bulk-data API.

Liability

To the extent permitted by law, the site owner is not liable for loss caused by reliance on a displayed result, service interruption, or a third-party link.