Transparent rules
See exactly which endpoints, weekends and holidays are included.
● Precise · Flexible · Browser-onlyDate, duration &
Date, duration &
business-day calculator
Count days between dates, plan deadlines and calculate working days with clear inclusion rules.
✓ No sign-up✓ Browser-based✓ Instant results
01 · Enter dates
How far apart are two dates?
Built for real planning
From quick checks to project deadlines
Use calendar-day mode for elapsed time, or apply working-day rules for delivery dates, service windows and internal planning.
End-of-month safe
Month and year calculations adjust correctly for shorter months.
Private by design
Your dates and exclusions never leave your browser.