Working Days Calculator

Enter a start and end date, then toggle Work Days to count only Monday to Friday, excluding weekends.

date − date = duration
A
05312026
B
DDYYYY

The working days calculator is essential for:

Project planning — calculating how many business days remain until a deadline.

Invoice payment terms — net-30 or net-60 payment windows are counted in business days, not calendar days.

Shipping estimates — most courier services quote delivery in business days.

HR and payroll — calculating notice periods, probation lengths, and leave entitlements.

Immigration — counting working days until visa application deadlines or appointment dates.

After entering your dates, tap the Work Days chip below the result. The count switches from calendar days to Monday to Friday business days.

Note: this calculator excludes weekends only. It does not subtract public holidays, which vary by country. Subtract holidays manually for your specific region.

Frequently Asked Questions

How do I count business days between two dates?

Enter your start and end dates, then tap the Work Days toggle below the result. The count switches from calendar days to Monday to Friday business days.

Does the working days calculator include public holidays?

No — it counts Monday to Friday only. Public holidays vary by country, so subtract them manually for your specific region.

How many working days are in a month?

Most months have between 20 and 23 working days, depending on how many weekdays fall in that month.