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D-Day Calculator

Count days until or since any date, see 100-day and anniversary dates, add days to a date and measure the time between two dates.

날짜 더하기·빼기

빼려면 음수(-30)를 넣으세요.

두 날짜 사이

평일 수는 주말만 빼고, 공휴일은 따로 빼지 않아요.

What is D-Day Calculator?

Calculates how many days are left until (or have passed since) an anniversary, exam or deadline. You can also find 100-day, 1000-day and other anniversary dates.

How to use

  1. Enter the base date.
  2. Choose today's date or a date to compare with.
  3. Check the days remaining and days passed.

Tips

  • There is an option for whether to count that day as day 1. Couples usually count the day they met as day 1.
  • For 100-day and 200-day milestones, tap a date in the list to copy it and add it to your calendar.