What it counts
The tool gives the exact number of calendar days between two dates, then expresses it as weeks and as a years-months-days breakdown. Order doesn't matter — dates are swapped automatically if needed.
Inclusive vs exclusive counting
This calculator counts the days between dates (exclusive), the usual convention: Monday to Friday is 4 days. For deadlines that include both endpoints — like day-counting in legal or medical contexts — add one to the result.
Frequently asked questions
Does the count include both start and end dates?
No — it counts days between (Mon→Fri = 4). Add 1 if your use case counts both endpoints.
Are leap years and month lengths handled?
Yes, real calendar dates are used throughout.
Can it handle dates years apart?
Yes — any two dates work, and the y/m/d breakdown keeps large gaps readable.