Calendar-day math uses UTC date-only values to avoid daylight saving shifts changing the result.
days between dates calculator
Count the days between two dates.
Choose a start and end date to see regular day difference, inclusive count, and weekday-only business days.
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Business-day count excludes Saturday and Sunday for planning ranges and delivery estimates.
How to use the Days Between Dates
- 1
Enter the start date.
- 2
Enter the end date.
- 3
Compare calendar days, inclusive days, and business days.
Frequently asked questions
What is the difference between calendar days and inclusive days?
Calendar days count the gap between dates. Inclusive days include both the start date and end date.
How are business days counted?
Business days exclude Saturday and Sunday.
Can the end date be before the start date?
Yes. The calculator returns a signed calendar-day difference for reversed ranges.
Does daylight saving time affect the result?
No. Date-only math uses UTC dates to avoid daylight saving shifts changing the day count.
Can I share a date range?
Yes. Updated start and end dates are mirrored into the page URL.
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