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Date Duration Calculator

Find how many days, weeks, and months lie between two dates.

Start date

End date

Total days—

Weeks—

Approx. months—

How to count the days between dates

Pick a start and end date. The calculator counts the whole days between them, then also shows the span in weeks and approximate months.

Frequently asked questions

How do I count days between two dates?

Subtract the earlier date from the later date. This calculator does it automatically and also shows weeks and months.