XL2000: Sample Code to Use a Date Range with NETWORKDAYS

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This article was previously published under Q213182

SUMMARY

When you use the NETWORKDAYS function to specify a range of dates for the Holidays argument, you must either type the dates in a range of cells or enclose the dates with array brackets ({}).

This article includes a Visual Basic for Applications function that allows you to type a beginning date and an ending date for a consecutive range of dates. The function returns the entire array of dates between the beginning and ending dates, and can be used with the Holidays argument of the NETWORKDAYS function.

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MORE INFORMATION

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The following function returns an array of date values from the beginning date (BegDate) through the ending date (EndDate):

Function DateSpan(BegDate As Date, EndDate As Date) As Variant
   Dim DateArray() As Variant, i As Integer, Span As Integer
   BegDate = DateValue(BegDate)
   EndDate = DateValue(EndDate)
   Span = EndDate - BegDate + 1
   ReDim DateArray(1 To Span)
   For i = 1 To Span
      DateArray(i) = BegDate + i - 1
   Next
   DateSpan = DateArray

End Function

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Example Using the Function with NETWORKDAYS

This example returns the number of workdays (weekdays) between December 1, 1998 and January 1, 1999, with the dates between December 24 and January 1 indicated as holidays.

NOTE: Before using the NETWORKDAYS function, you must install the Analysis Toolpak add-in.

In a new workbook, type the custom function DateSpan (illustrated above) into a new module sheet.
In Sheet1, type the following formula into cell A1:
=NETWORKDAYS(DATEVALUE("12/1/98"), DATEVALUE("1/1/99"), DateSpan("12/24/98","1/1/99"))

The result is 17 days, the number of days, excluding weekends and holidays, within the specified date range.

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REFERENCES

For more information about the Networkdays function, click Microsoft Excel Help on the Help menu, type networkdays worksheet function in the Office Assistant or the Answer Wizard, and then click Search to view the topic.

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