Date & Time
Working Days Calculator
Working Days: working Days Calculator counts the working days between the two dates, including weekdays and excluding weekends. Worked through below with real figures, and the calculator repeats the working on your own inputs — free, on-device, instant.
Working Days Calculator takes your period start and period end and gives back the number of working days, applying inclusive weekday counting. It's a quick, browser-based way to count the working days between two dates, skipping weekends.
About this calculator
Working Days is easiest to get wrong in the setup, not the arithmetic. Working Days Calculator counts the working days between the two dates, including weekdays and excluding weekends. It matters whenever spans between dates, times or zones drive a plan, a deadline or a record. The worked example on this page (A 30-day month with 4 full weekends has 30 − 8 = 22 working days before public holidays.) shows the full substitution; the calculator above runs the same working on your own numbers, in your browser, with nothing uploaded.
How to use
- Pick the range's start date.
- Pick the range's end date.
- Press Calculate to count working days.
- Read the working days alongside weekend and total day counts.
Why use Working Days Calculator
Fast
Calculations run in your browser. No round trip to a server.
Private
Your inputs never leave your device. Nothing is uploaded.
Free
No signup, no paywall, no ads-in-results, no watermarks.
Accurate
Uses standard calendar arithmetic where applicable. Check critical schedules, payroll, and official holiday dates before relying on results.
Mobile-ready
Optimised for phones, tablets, and desktops alike.
Transparent
Honest disclaimers wherever browser limits or regional rules apply.
Common uses
Use it for onboarding and notice periods
Use it for delivery and lead-time estimates
Use it when measuring response times
Use it for staffing and shift planning
Use it for contract working-day clauses
Use it when excluding weekends from a deadline
Technical notes
Working Days Calculator counts the working days between the two dates, including weekdays and excluding weekends.
Calculations use the calendar only and do not adjust for time-zone shifts unless a field asks for a zone.
Results are rounded for display; the underlying calculation keeps full precision.
FAQ
What counts as a working day?
Working days are Monday through Friday; Saturdays and Sundays are excluded and reported separately.
Are both endpoints included?
Yes. The start and end dates are both counted when they land on a weekday.
Are public holidays removed?
No. Only weekends are excluded; subtract public holidays separately using a holiday calendar.
Does the Working Days Calculator send my data to a server?
No. The Working Days Calculator runs entirely in your browser — your inputs never leave your device, and nothing is uploaded or stored.
Worked example
A 30-day month with 4 full weekends has 30 − 8 = 22 working days before public holidays.