Calculate Date Difference
Add or Subtract Days
Business Days Calculator
Calculate working days (Mon–Fri), excluding weekends.
Find Day of Week
Instant Results
Accurate date calculations in real-time
Multiple Units
Years, months, weeks, days, hours
Business Days
Weekdays only, excluding weekends
4-in-1 Tool
All date tools in one place
Complete Guide to Date Calculations
Our date calculator provides comprehensive tools for working with dates — calculating differences, planning future events, counting working days, and analyzing time periods.
Date Difference
Enter a start and end date to see the exact difference in years, months, weeks, days, hours, and minutes. Accounts for leap years and varying month lengths automatically.
Add or Subtract Days
Add or subtract any number of days from a starting date — perfect for scheduling deadlines, calculating due dates, and planning project milestones. Use the quick-add buttons for common periods like 1 week, 1 month, or 1 year.
Business Days
Count only weekdays (Mon–Fri) between two dates, automatically excluding Saturdays and Sundays. Essential for project timelines, delivery schedules, and turnaround calculations.
Common Use Cases
- Project planning — Calculate deadlines and working days available
- Age calculation — Find exact age between two dates
- Contract tracking — Know when agreements expire
- Event planning — Count down days to important dates
- Loan scheduling — Calculate payment due dates
Frequently Asked Questions
Use the Date Difference tab. Enter a From Date and To Date, then click Calculate Difference to see the result in years, months, weeks, days, hours, and minutes.
Yes. The Business Days tab counts only weekdays (Monday–Friday) between two dates, automatically excluding weekends.
Yes, all calculations automatically account for leap years and varying month lengths for accurate results.
No — public holidays vary by country and region, so they are not excluded. You would need to manually subtract holidays relevant to your location.
Yes, completely free with no registration, no limits, and no data stored.
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