Days between dates calculator
Pick two dates to count the days between them, plus weeks, months, weekdays and business days.
From Wednesday, September 30, 2026 to Friday, December 25, 2026. *Business days skip U.S. federal holidays.
Counting down to a specific date?
If one of your dates is in the future, a live countdown may be easier. Try how many days until any date or holiday, or the birthday countdown.
Frequently asked questions
How do I count the days between two dates?
Pick a start date and an end date. The calculator subtracts them and also shows the result in weeks, months, weekdays and business days.
Does the count include the end date?
By default it counts the days from the start date up to the end date, not including the start day, the same way you would say there is 1 day between today and tomorrow. Tick "Include the end date" to add one more day, for example to count every day of a trip.
What counts as a business day?
Monday to Friday, skipping U.S. federal holidays on their observed dates. Your own workplace or country may have different holidays.