Privacy Policy

What we collect

The calculator functions on this site are designed to process date inputs in your browser. We do not require an account to use them.

Analytics and advertising

The live homepage uses Google Analytics 4 to measure site usage. Google Analytics may use cookies and collect device, browser and page interaction information. Calculator dates are processed locally and are not included in analytics events by our calculation code. No third-party advertising network is included in this version. Offline review copies disable analytics. You can block analytics using browser privacy controls or Google’s Analytics opt-out browser add-on. Learn more at Google Privacy Policy.

Contact

For privacy questions, use the contact page.