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Days between dates

Pick two dates. Tick the box to count the end date.

Counting days by hand is easy to get wrong by one. The usual question is whether to count the last day.

Counting the end date

From Monday to Friday is 4 days if you count the gaps, or 5 if you count every day you were there. Leases, visas and contracts often count both ends; ask what the document says.

Weekdays and business days

Weekdays are Monday to Friday. Business days also take out US federal holidays on their observed dates.

Frequently asked questions

How many days until Christmas?

Pick today and December 25.

How many weeks is 100 days?

14 weeks and 2 days.

Does it account for leap years?

Yes. It uses the real calendar.