Excel Function : NETWORKDAYS
Date and time
Returns the number of whole workdays between two dates
Microsoft Excel Reference Page
Syntax and Description of the NETWORKDAYS Excel Function
The syntax for the NETWORKDAYS function in Microsoft Excel is: NETWORKDAYS( start_date, end_date, [holidays] ) start_date is the start date of the period. end_date is the end date of the period. [holidays] is an optional list of dates to exclude from the calculation.
About NETWORKDAYS Excel Function
The NETWORKDAYS function calculates the number of whole workdays between two dates.