This Excel Tutorial demonstrates how to use the Excel WORKDAY Function in Excel to add business days, with formula examples.

WORKDAY Function Description:

The WORKDAY Function Returns the work day n number of working days (working days excludes weekends: Sat & Sun) from a start date. Optionally, you can exclude holidays. For custom weekends, use WORKDAY.INTL instead.

Formula Examples:

Example	Formula	Result
Positive	=WORKDAY(C5,D5)	12/4/2015
Negative	=WORKDAY(C6,D6)	9/28/2015
Include Holidays	=WORKDAY(C7,D7,F7)	12/7/2015

Syntax and Arguments:

The Syntax for the WORKDAY Formula is:

Function Arguments ( Inputs ):

start_date – The start date in Excel serial number format or entered as a date with quotations (“s) surround the date. Example: You can not enter 11/12/2015 directly into the cell. Instead you need to enter “11/12/2015” or you would need to use the corresponding serial number: 42320. Alternatively, you can reference a cell with the date 11/12/2015 entered. Excel automatically converts dates stored in cells into serial format (unless the date is entered as text).

days – The number of non-weekend and non-holiday days from the start date.

holidays – OPTIONAL. An array with a list of dates representing holidays that should be excluded from workdays.

Additional Notes

The result of the WORKDAY Function may appear as a serial number. Change the cell Number Formatting to Short Date to display the serial number as a date:

Return to the List of all Functions in Excel

How to use the WORKDAY Function in Excel:

To use the AND Excel Worksheet Function, type the following into a cell:
=AND(
After entering it in the cell, notice how the AND formula inputs appear below the cell:

You will need to enter these inputs into the function. The function inputs are covered in more detail in the next section. However, if you ever need more help with the function, after typing “=WORKDAY(” into a cell, without leaving the cell, use the shortcut CTRL + A (A for Arguments) to open the “Insert Function Dialog Box” for detailed instructions:

For more information about the WORKDAY Formula visit the
Microsoft Website.