Free Online Days Between Dates
Count the days, weeks, months, and working days between any two dates.
Useful when counting vacation days, project days, or event lengths.
About the Days Between Dates Calculator
This calculator counts the time between two calendar dates. It can include or exclude the end date, and it separates the result into total days, weeks, business days, weekend days, hours, and minutes.
Inclusive vs exclusive counting
By default, the end date is not included. From 1 January to 8 January that gives 7 days, which is the number of nights in a one-week hotel stay. If you tick Include the end date, the same range counts as 8 days, which is useful for vacation days or event durations.
Business days
Business days are Monday through Friday. Public holidays are not excluded because they vary by country and year. If you need an exact working-day count for payroll or contracts, subtract the relevant holidays from the business-day total.
How to use this calculator
- Choose a start date and an end date.
- Tick the include-end-date option if you want both endpoints counted.
- Click Calculate days to see every result.
Frequently asked questions
Why are the weekdays and business days the same?
Weekdays are Monday to Friday, which is the same definition used for business days here. Public holidays are not included.
Does daylight saving affect the count?
No. The calculator compares calendar dates, not clock times, so a daylight saving change does not add or remove a day.
Can I count backwards?
Yes. Use the swap button to reverse the dates, or enter the later date first and the calculator will swap them for you.