No uploads · runs in browser
D-day and Anniversary
Count down to any date, track anniversaries, and convert between Korean age and international age.
Favorite it to find it fast on home
When to use it
Days left until an exam
Check the D-day to the CSAT
Count the days to an anniversary
How to use it
1Step 1Fill in Target date
2Step 2Change a value and the result updates instantly
3Step 3Save or copy the result
If the result looks off
The result looks wrong
Check the units and the baseline first. Changing a value updates the result instantly.
I want the starting values back
Press reset to return to the initial state.
Frequently asked questions
Is the target day itself counted?
It counts the difference from midnight today. The exam day itself shows as D-day and the day before as D-1.