Dates & Time
Popular
Date Difference & Business Days Calculator
Calculate the total days, business working days (excluding weekends), weeks, and calendar span between any two dates.
How many total days are there between two dates?How many business days (excluding Saturdays and Sundays) exist in a project window?What is the duration in calendar years, months, and days?
Instant in-browser · no uploads
Date Range
Total Duration
90 days
Span: 0 years, 2 months, 29 days.
Business Days
65
Excludes weekends
Weekend Days
25
Sat & Sun
Weeks
12w 6d
2,160 hours
How this calculation works
Iterates across calendar dates identifying weekend boundaries (Saturday/Sunday) and exact fractional spans.
Formula
Total Days = End Date - Start Date | Business Days = Total Days - Weekends
Frequently asked questions
This calculator excludes standard weekends (Saturday/Sunday). Public holidays vary by country and jurisdiction.
Private by design
Calculations run entirely in your browser. Your financial data is never sent to a server.
Zero server logs
Related calculators