D-Day Calculator
Days until any date, with a shareable link
Enter a target date, an exam, an anniversary, a launch, and instantly see the days remaining (or elapsed) as D-7, D-Day or D+3. Add an event name to build a shareable link, and anyone who opens it sees the same count. No sign-in and nothing sent anywhere: it all runs in your browser.
Pick a date to count the days.
Anyone who opens this link sees the same countdown.
FAQ
- How is the D-day number calculated?
- It is the number of whole calendar days between today and your target date, in your local time zone. The target day itself is "D-Day".
- Can I share the result?
- Yes. The Share button opens your device share sheet with a URL that has the date baked in (and copies the link when no share sheet is available), so anyone who opens it sees the same count.
- Is anything stored or sent?
- No. Everything runs in your browser; the date is only kept in the page URL you choose to share.