Business Days Between Dates

How to calculate business days?

To calculate business days, you first determine the total number of calendar days between your chosen start and end dates. From this total, you must subtract every weekend day (Saturdays and Sundays) and any public holidays that fall within that specific period to arrive at the net working days.

Business Days = Total Calendar Days - (Weekend Days + Observed Holidays)

Using the Business Days calculator: an example

Imagine you are calculating the working period between January 1st and January 15th in a standard year.

Step-by-step calculation

• Identify total days: The range from Jan 1st to Jan 15th consists of 15 calendar days.
• Count weekend days: In this period, there are 4 weekend days (two Saturdays and two Sundays).
• Subtract holidays: January 1st is recognized as a public holiday.
• Final Result: 15 total days - 4 weekends - 1 holiday = 10 business days.

Frequently Asked Questions

Does this include the start date?
Our calculator typically follows the standard convention of excluding the start date and including the end date to represent a duration, though you can adjust settings for specific project needs.

How are leap years handled?
Leap years are automatically factored into the logic. If your date range crosses February 29th, the calculator adds that extra day to the total calendar count before processing weekends.

Can I exclude specific holidays?
Yes. You have the option to select specific regional holiday calendars or manually enter custom dates that should be treated as non-working days.