D-Day Calculator
Count the days until an exam or anniversary, or the days between two dates.
Input
Output
Pick a date to calculate the D-Day
FAQ
What's the difference between D-1 and D+1?
D-1 means the target is tomorrow (one day left); D+1 means it was yesterday (one day past). The day itself shows as D-Day.
When do I use 'inclusive days'?
Use it when both the start and end dates count (event duration, medication days). It's the difference plus one.
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