Dates & Scheduling
Date Difference Calculator
Find the difference between two dates or times: calendar days, an exact duration, weeks, months, and business days. Everything runs in your browser — your dates never leave the page.
Choose two dates
Difference
live0days
How it works
Dates are compared in your local timezone. The headline count is the number of calendar days between the two dates; weeks and months are counted on the calendar, while hours, minutes and seconds use the exact elapsed time. Business days exclude Saturdays and Sundays. The optional share link encodes the dates in the URL fragment, which stays in your browser.
Practical uses
Measure the time between two dates as calendar days, business days, and a duration.
Common ways to use it
- Count business days between a start and end date for a project timeline.
- Work out elapsed days for an invoice, leave request, or subscription period.
January 1 to January 31, 2026
Input
Start: 2026-01-01 End: 2026-01-31
Output
30 calendar days 22 business days 8 weekend days
Verified with the tool's date-computation functions.
Things to keep in mind
- Business days count Monday to Friday only; public holidays are not included.
- Calendar durations and exact totals differ because calendar months have different lengths.