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HowTo: Formula to Find Number of Weekdays Between Dates

In Microsoft Excel version 4.0 and later, use the following formula to find the number of weekdays between two dates, where A1 equals the first date first date and A2 equals the second date:


NOTE: The dates in A1 and A2 must be weekdays, or the result may not be correct.

NOTE: the NETWORKDAYS() function is included in the Microsoft Excel Analysis Toolpack Add-In.

This function is designed to exclude Saturday and Sunday as the weekend.In all versions of Microsoft Excel including version 4.0 the following formula can be used to find the number of weekdays between two dates, where Thursday and Friday are the weekend:

The first part of the formula determines the total number of days between the two dates.

The next section determines the number or whole weeks between the two dates. This section then multiplies that by two because there is a Thursday and a Friday in each whole week.

The last section determines if the range spanned a weekend even though it was not a whole week. For example, if your start date was on a Thursday, and your end date was on a Monday, there would be a weekend in between. The WEEKDAY function would return a 2 for Monday and a 5 for Thursday, so an additional two days are subtracted.

Article ID: 821091 - Last Review: 08/25/2008 14:42:12 - Revision: 1.1

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