Working Days
23
Selected workdays in the date range.
Workday counter
Working Days Calculator
Count working days and business days between two dates.
Choose a start date, end date, and workdays to calculate working days in a date range. You can also use it as a business days calculator when your schedule follows standard weekdays. Public holidays are not excluded in this version.
Calculator
Date Range and Workdays
Start and end dates are included in this count.
Results
Working Day Count
The calculation includes both the start date and the end date when they are selected workdays.
Calendar Days
31
Total days including start and end date.
Non-Working Days
8
Calendar days that are not selected workdays.
Quick answer
How many business days are between two dates?
This date range contains 23 working days. With a standard Monday-to-Friday schedule, that is also 23 business days, plus 8 non-working days across 31 calendar days.
Use Monday through Friday for a standard business day calculation, or choose a custom weekly schedule for shift work and non-traditional workweeks. This page includes both the start date and end date when they match a selected weekday.
- 23 business days match a standard Monday-to-Friday week.
- 8 days in this range fall outside that business-week pattern.
- The full range contains 31 calendar days including weekends.
Method
How to Calculate Business Days Between Two Dates
This calculator checks each date in your selected range and counts it when the weekday matches your selection. It works as a working days calculator for custom schedules and as a business days calculator when you keep Monday through Friday selected. Public holidays, company holidays, and regional shutdowns are not removed automatically.
1. Choose the date range
Select a start date and end date. Both dates are included in the calculation.
2. Select your business days
Use Monday through Friday for a standard business day count, or choose a custom weekly schedule that matches your work pattern.
3. Count matching dates
Every date whose weekday matches your selection is counted as one working day.
If you want a standard business days calculation, leave Monday through Friday selected and keep weekends turned off.
Common questions
Common Business Day Questions
How many business days are in a week?
In a standard workweek, there are 5 business days: Monday through Friday.
How many business days are in 30 days?
A 30-day period usually contains around 20 to 22 business days, depending on where the range starts and ends.
Does this calculator remove holidays?
No. It counts selected weekdays only, so public holidays and company closures must be adjusted manually.
Formula
How This Business Days Calculator Counts Dates
The logic is simple: the calculator checks every date between your start date and end date, then counts it when the weekday matches your selected schedule. If you leave Monday through Friday selected, the result works like a basic business days calculator.
Business day formula
Business days = dates in the range whose weekday is Monday, Tuesday, Wednesday, Thursday, or Friday
This is the standard setup for deadlines, payroll lead times, shipping windows, and office schedules.
Custom working day formula
Working days = dates in the range whose weekday matches your selected schedule
This version is better for rotating shifts, weekend work, or part-time schedules that do not follow a normal business week.
Use cases
When to Use Business Days Instead of Calendar Days
Use business days when weekends should not count toward a deadline, work schedule, or office process. Use calendar days when every day in the date range matters, including weekends.
Use business days for
- Payroll planning and weekday-based pay schedules
- Project timelines that pause on weekends
- Invoice, approval, and office processing windows
- Shipping or delivery lead times quoted in business days
Use calendar days for
- Full trip or subscription date spans
- Vacation periods where weekends still count
- Lease, billing, or notice periods measured by total days
- Any schedule where Saturday and Sunday should still be included
Examples
Quick Business Day Examples
These examples use a standard Monday-to-Friday business week and include both the start date and end date.
How many business days are in 7 days?
A full Monday-to-Sunday week usually contains 5 business days and 7 calendar days.
How many business days are in 14 days?
Two full weeks usually contain 10 business days when you count Monday through Friday only.
How many business days are in 30 days?
Most 30-day ranges contain about 20 to 22 business days, depending on where the range starts and ends.
| Date Range | Business Days | Calendar Days | Notes |
|---|---|---|---|
| Monday to Friday | 5 | 5 | A full standard business week. |
| Monday to Sunday | 5 | 7 | Weekends are not counted as business days. |
| Two full weeks | 10 | 14 | Useful for payroll and project estimates. |
| 30 calendar days | Usually 20 to 22 | 30 | The exact total depends on the weekday pattern. |
Definitions and example
Working Days vs Business Days
Working days and business days often overlap, but they are not always identical. Working days follow the weekdays you choose for a specific schedule, while business days usually mean a standard Monday-to-Friday week. Calendar days always include every day in the range, including weekends.
Working days
Days included in a person's selected weekly work schedule.
Business days
Usually Monday through Friday, although holidays and local rules may change the definition.
Calendar days
Every day in the range, including weekends and public holidays.
Example: Business Days in a Monday-to-Sunday Range
A Monday-to-Sunday range contains 7 calendar days. With Monday through Friday selected, the calculator returns 5 working days and 2 non-working days. A public holiday on a selected weekday would still be counted because automatic holiday exclusion is not currently supported.
How many workdays are in a standard month?
Most 30- or 31-day months contain about 20 to 23 business days, depending on weekends and where the month begins.
Can working days and business days be different?
Yes. They match for a standard Monday-to-Friday schedule, but they differ when a person works weekends, rotating shifts, or a custom weekly pattern.
Holiday note
This working days calculator is best for simple planning. If you need bank holidays, public holidays, or country-specific closures removed automatically, you will still need to adjust the result manually.
FAQ
Frequently Asked Questions
What is a working days calculator?
A working days calculator counts how many selected weekdays fall between two dates. It is useful for project timelines, payroll planning, and estimating business days when you use a standard Monday-to-Friday schedule.
What is a business day?
A business day usually means Monday through Friday, excluding weekends. Some employers, banks, couriers, and legal processes may also exclude public holidays, but this calculator does not remove holidays automatically.
How do I calculate business days between two dates?
Choose a start date and end date, then keep Monday through Friday selected. The calculator includes both dates and counts each matching weekday in the range.
What is the difference between working days and business days?
Working days follow the weekdays you choose for your own schedule. Business days usually mean a standard Monday-to-Friday week. In many cases the totals are the same, but custom work schedules can produce different results.
Does this business days calculator include weekends?
No, not when you use the default Monday-to-Friday selection. Weekends are only counted if you manually turn Saturday or Sunday on.
Does this business days calculator include public holidays?
No. This version counts only by weekday selection and does not automatically remove public holidays, bank holidays, or company shutdown dates.
Are the start date and end date included?
Yes. The calculator includes both the start date and the end date when they match your selected weekdays.
Can I use custom workdays instead of Monday to Friday?
Yes. You can select any combination of weekdays, including weekends or rotating schedules, so the calculator can count custom working days as well as standard business days.
How many business days are in a week?
A standard business week usually has 5 business days: Monday, Tuesday, Wednesday, Thursday, and Friday.