About this calculator
Count working days in a period, or find the date a set number of working days ahead.
How to use it
- Choose what to find.
- Enter the dates or the number of working days.
- Choose a five- or six-day week, and enter any holidays.
The formula
Working days = days in the period − weekend days − holidays
- weekend
- Saturday and Sunday, or Sunday only for a six-day week
- holidays
- public holidays on working days, entered by you
Worked example
October 2026, Monday to Friday, with 1 holiday
- October 2026 has 31 days, 9 of them weekend days.
- 22 weekdays − 1 holiday = 21 working days.
What the result means
Holidays differ by state and employer, so enter the ones that apply to you.
Assumptions
- Both start and end dates are counted.
Limitations
- Holidays are not looked up automatically.
Frequently asked questions
How many working days are in a month?
Usually 20 to 23 for a five-day week, or 25 to 27 for a six-day week.
Does it include the start date?
Yes, both dates are included when counting.
What about Gandhi Jayanti and other holidays?
Enter the holidays that fall on working days in the holidays box.
Last reviewed on 3 October 2026. Found a mistake? Tell us.