D-Day Counter
Track important dates and count down to them.
D-Day Calculator
날짜 간격 계산
Other Utilities
What is a D-Day Counter?
A D-Day counter calculates the number of days until a future date or the number of days since a past date. It's useful for tracking important events like birthdays, anniversaries, deadlines, and milestones.
Common Uses
- Wedding countdown: Days until the big day
- Birthday tracking: Days until next birthday
- Project deadlines: Days remaining to complete
- Anniversary tracking: Days since a special date
- Vacation countdown: Days until your trip
- Goal tracking: Days since you started
Features
- Save multiple dates: Track several important dates at once
- Auto-save: Your dates are saved in your browser
- Past and future: Works for dates in either direction
- Custom labels: Name each date for easy reference
Calculation Method
The D-Day count is calculated based on midnight of each day. "D-0" means today, "D-1" means tomorrow, and "D+1" means yesterday. This follows the international standard dating convention.
