Days between dates calculator
Count how many days, weeks and months are between two dates.
Difference
9,665 days
In weeks1,380.7
In months (approx.)317.5
In years (approx.)26.46
In hours231,960
The count considers whole days between the two dates.
How the calculation works
The number of days is the calendar difference between the two dates, accounting for months of different lengths and leap years.
Frequently asked questions
Is the end date included?
It is the whole-day difference; add 1 if you want to include both endpoints.
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Updated on June 17, 2026 · by Rafael Rossi · Methodology & sources