D-Day Calculator
Track how many days are left until an event, or how many have gone by since one happened. Name the event, pick the target date, and this tool works out the day count using your local calendar.
How to use
- Enter a name for the event.
- Pick the target calendar date.
- Read the days remaining or elapsed.
Frequently asked questions
- How is D-day counted?
- It counts whole calendar days between today and the target date in your local time zone, showing D-minus before the date and D-plus after.
- Can I save more than one date?
- Yes. Saved dates stay listed so you can track several events at once.
- Is my data sent anywhere?
- No. The calculation happens entirely in your browser.
Privacy
The dates you enter are calculated in your browser and are never sent to a server.