Date Difference Calculator
Duration between two dates in years, months, weeks, days and business days — plus add/subtract and countdown.
Duration between two dates in years, months, weeks, days and business days — plus add/subtract and countdown.
Add / subtract from start date
Sunday, 09 August 2026
Total days
90 days
12 weeks · 2 160 hours
Full years
0
Full months
2
Business days
90
Countdown
89 days remaining
The calculator finds the calendar gap between two dates and expresses it in multiple units. It can also exclude weekends (and holidays) to count working days.
Variable Definitions:
✅ Best used for:
⚠️ Limitations:
Total days count every day; business days exclude weekends (and any holidays you add), which is useful for deadlines and payroll.
Shift a date forward or back by days, months or years, or count the days remaining until a future date.