D-Day Counter
Days until or since an event
How to Use
- Enter an optional event name (e.g. "Graduation").
- Pick the target date.
- Click Calculate to see the D-Day count.
- Click Save to store the event locally (up to 5 events).
- Tap a saved event to reload it anytime.
Display Formats
D-4242 days remaining until a future event.+365365 days have passed since a past event.Today!The target date is today.FAQ
Can I track multiple events at once?
Yes — save up to 5 events using the Save button. Your saved events appear below the calculator and persist across browser sessions.
Why is there no progress bar for dates beyond 1 year?
The progress bar is designed to give a visual sense of nearness. For events more than a year away, the days count alone is more meaningful than a progress percentage.