Privacy

Last updated: September 16, 2026.

Calculator inputs

Dates, times, and durations are processed in your browser. The calculator code does not transmit them to our server, store them in cookies or browser storage, or put them into page URLs. Copy and Print run only when you choose those actions.

Hosting and request data

The website is designed for hosting on Cloudflare Pages. Loading a page sends standard request information, such as your IP address, requested URL, browser information, and request time, to the hosting provider. Cloudflare may process this information to deliver and secure the website. See Cloudflare’s privacy policy for its practices.

Cookies, analytics, and advertising

This version does not load advertising or third-party analytics scripts and does not set calculator cookies. If advertising or analytics is introduced, this notice and any required consent controls will be updated before those services are enabled.

Contact messages

If you email us, your email provider and ours process your message. We use the information you send to respond and investigate reported issues. Avoid sending sensitive personal information. You may request deletion of a message, subject to any applicable retention obligations.

Contact

For privacy questions, email [email protected].