Privacy Policy
Last updated: July 3, 2026
Our Commitment to Privacy
This calculator is designed with privacy as a core feature. We believe date calculations should not require tracking, data collection, or server interaction.
Data Collection
We do not collect, store, or transmit any personal data. All calculations happen entirely in your browser using JavaScript. There are no analytics trackers, cookies, or server-side logging.
How It Works
When you enter dates into the calculator:
- Your dates are processed locally in your browser
- No data is sent over the network
- No cookies are set by the calculator
- No user accounts are required
Dark Mode Preference
Your dark mode preference is stored in your browser’s local storage. This is used solely to remember your theme preference across visits. No server receives this information.
Third-Party Services
This website does not use any third-party analytics, advertising, or tracking services. The site is hosted on Vercel, which may collect standard server logs (IP address, browser type, etc.) as part of normal hosting operations.
Changes to This Policy
If this privacy policy changes, the "Last updated" date at the top of this page will be revised. We encourage you to review this page periodically.
Contact
If you have questions about this privacy policy, please open an issue on our GitHub repository.