About D-Day Calculator

D-Day Calculator is a free, fast, and privacy-focused online utility for calculating days remaining until a target date or since a past event.

Privacy First

All processing happens locally in your browser using JavaScript. We never transmit, store, or log any of your data.

Tech Stack

Built with Astro and Tailwind CSS, deployed on Cloudflare Pages.

Contact

Found a bug or have a suggestion? Feel free to reach out at contact@d-day-calculator.dev.