만나이 디데이 계산기

Finish complex date calculations all at once.

From age in years to D-days, 100-days, and anniversaries — this is the simplest and fastest date calculator.

■ Calculate Age in Years
- Instantly calculate age in years just by entering your date of birth
- Displays how many days you have lived since birth and how many days remain until your next birthday
- Supports both Solar and Lunar calendars (accurate Lunar birthdays)

■ Calculate D-day
- See how many days are left until your target date (D-day) at a glance
- Calculates how many days have passed even for dates that have already gone by

■ Manage Anniversaries
- Save special days such as your first date of dating or wedding anniversary
- Automatically calculates anniversaries like 100-day, 200-day, and 1-year anniversaries
- Organizes upcoming anniversaries in order of proximity

■ Other Features
- Check your Zodiac Sign/Astrological Sign
- Use immediately without logging in; all information is stored only on your phone
- Lightweight and clean interface

Don't forget the special days of your loved ones, family, and friends.

Try it out right now!