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D-Day Calculator
디데이 · 디데이 계산기 · d-day calculator · days until · 남은 날짜
D-Day Calculator
Count the days until (or since) a target date.
Calculated from today. D-DAY means the target date itself.
How to use
- 1
Pick a target date.
- 2
The days remaining (or elapsed) appear in D-number format.
- 3
Add a name to label what the countdown is for.
FAQ
Is this tool free?
Yes — it is completely free to use, with no account or sign-up required.
What is this tool?
Count how many days remain until a target date — an exam, anniversary, or deadline. Enter the date and it shows the days left as D-100, D-1, and so on, or D+number for a date that has already passed. You can add a name to label what the countdown is for. It's calculated from today, runs in your browser, and is free with no install.