Two Date Difference Calculator
Count the days between two dates (calendar or business). Optionally include the end date, exclude holidays, or switch to add/subtract mode. Free • Private • Fast.
About this two date difference calculator
Enter two dates to get the difference in calendar days or business days. Turn on Include end date to count the To date as well, and add holiday dates to exclude them. All calculations run locally in your browser.
Date difference (two dates)
Choose From and To, select Calendar or Business days, and decide if the end date is included.
Business days between dates
Weekends are skipped automatically. Add holiday YYYY-MM-DD values to exclude them too.
Add/Subtract days
Move a date forward/backward by calendar or business days with optional holidays.
Holidays
Comma-separated dates like 2025-01-01, 2025-12-25.
Privacy
No sign-in, no tracking—everything stays on your device.
Share & shortcuts
Use “Copy Shareable Link”. Shortcuts: S to switch tabs, C to copy.
Last updated: October 20, 2025