Calculators
Date Difference Calculator
Count days, weeks, and weekdays between dates. Everything stays private in your browser.
About this tool
Date Difference Calculator
Calculate the span between two calendar dates in total days, complete weeks, and weekdays. The weekday count excludes Saturdays and Sundays but does not automatically remove public holidays.
Dates can be entered in either order. Use the displayed start and end values to confirm the interval you intended.
Quick guide
How to use Date Difference Calculator
- Choose the starting calendar date.
- Choose the ending calendar date.
- Compare total days, full weeks, and Monday-through-Friday weekdays.
Practical uses
What you can do with it
- Estimate project timelines
- Count weekdays before a deadline
- Measure trip or rental length
- Compare dates for contracts or records
Common questions
Date Difference Calculator FAQ
Does the weekday total exclude holidays?
No. It excludes Saturdays and Sundays only. Subtract any relevant national, regional, or company holidays separately.
Are the start and end dates both included?
The result is elapsed time and does not count both endpoints. Add one day when your situation calls for an inclusive calendar count.
What happens if the dates are reversed?
The calculator still reports the absolute span between them. Check which date is your start when interpreting a schedule or deadline.