Business Days Between Two Dates
Enter a start date and end date to count the exact number of Mon–Fri working days between them. Both dates inclusive. Weekends excluded automatically. Use for SLA tracking, sprint planning, and contract deadline verification.
Pick two dates — get the exact number of Mon–Fri days between them. Weekends excluded, both dates inclusive.
After calculating, copy the result into your workflow instead of searching for the calculator again.
Calculate first, then reuse the result
After you calculate, UtilityPilot can turn the result into a clean note you can paste into your SOP, spreadsheet, CRM, Slack, Notion, checklist or email.
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No sign-up · No stored inputs · Copied text does not include your entered values
Formula
Business Days = Count of Mon–Fri days from Start Date to End Date (inclusive)
Every calendar day between the two dates is checked. If it falls on Monday through Friday, it is counted. Saturday and Sunday are always skipped.
Worked Example
Scenario 1 — SLA tracking:
A support ticket is raised on Monday 5 May. Your SLA requires a resolution within 5 business days.
Start: Monday 5 May • End: Friday 9 May = 5 business days
If the period crossed a weekend (Mon 5 May → Mon 12 May): the result is 6 business days — Saturday and Sunday are excluded.
Scenario 2 — Project sprint duration:
A two-week sprint runs from Monday 3 February to Friday 14 February.
Week 1: Mon–Fri = 5 days • Week 2: Mon–Fri = 5 days
Total: 10 business days
Scenario 3 — Payment terms check:
An invoice is issued on Friday 7 March under Net 30 business days terms. The due date falls on Thursday 17 April (30 business days later, skipping 8 weekend days).
For calendar-day Net 30 terms, use the Invoice Due Date Calculator instead — it handles both calculation methods.
Common Mistakes
- Forgetting that both dates are inclusive. Mon 1 May to Fri 5 May = 5 business days, not 4.
- Expecting public holidays to be excluded. This calculator only excludes weekends. For UK or EU bank holidays, use the regional calculators.
- Confusing calendar days with business days. A 30-calendar-day SLA is not the same as a 30-business-day SLA — the latter is roughly 6 weeks.
Guide
How to Use
- 1
Enter the start date
Select the first day of the period you want to measure.
- 2
Enter the end date
Select the last day. Both dates are included in the count.
- 3
Click Count Business Days
The tool counts every Mon–Fri between the two dates.
- 4
Copy your result
Use the copy button to paste into emails or project trackers.
Next Steps
What to do next
FAQ
Frequently Asked Questions
Related by Workflow
Country Working Days Calculators
UK Working Days
8 England & Wales bank holidays excluded
US Working Days
11 US federal holidays excluded
France Working Days
11 jours fériés excluded
Germany Working Days
9 nationwide public holidays excluded
Australia Working Days
National holidays incl. ANZAC Day excluded
South Africa Working Days
12 SA national public holidays excluded
Belgium Working Days
10 Belgian national holidays excluded
Working Days Europe
Multi-country EU working days tool
How it works
The calculator checks every calendar day between your two dates and counts only the ones that fall Monday through Friday. Both the start and end date are included if they are weekdays.
Worked example
Start: Monday 3 February End: Friday 14 February
Week 1: Mon–Fri = 5 days | Weekend skipped
Week 2: Mon–Fri = 5 days
Result: 10 business days
Common use cases
- Measuring sprint length for project management
- Verifying SLA compliance (e.g. was the issue resolved in 5 business days?)
- Checking payment term durations (how many working days between invoice and payment?)
- Calculating notice periods in contracts
- HR leave accrual calculations
Use this in your workflow
After calculating, use Copy result summary to paste the result into your SOP, project tracker, CRM, Slack, Notion, email or checklist. Save it once and your team can reference it without recalculating.
Need working days with public holidays excluded? Choose your country: UK, US, Germany, Europe.
Want to add business days to a date instead? Use Add Business Days Calculator.