Please Note: This article is written for users of the following Microsoft Excel versions: 2007 and 2010. If you are using an earlier version (Excel 2003 or earlier), this tip may not work for you. For a version of this tip written specifically for earlier versions of Excel, click here: Specifying Different Weekends with NETWORKDAYS.
Sunil can use the NETWORKDAYS function to return the number of regular business days between two dates. The function assumes that Saturday and Sunday are not work days, but in Sunil's organization only Sunday counts as a non-work day. He wonders if there is a way to use NETWORKDAYS and specify that only Sunday should be excluded from the count returned.
You can determine this by using a formula based on the NETWORKDAYS function. Assuming that the starting date is in A1 and the ending date is in B1, the following formula examines the days between the two dates and essentially return a count of non-Sunday days in that range:
=NETWORKDAYS(A1,B1)+SUMPRODUCT(--(WEEKDAY (ROW(INDIRECT(A1&":"&B1)))=7))
Of course, since Sundays are the only day of the week being excluded, you could simply skip the use of NETWORKDAYS and use SUMPRODUCT to figure out if the day should be counted or not:
=SUMPRODUCT(--(WEEKDAY(ROW(INDIRECT(A1&":"&B1)))>1))
If you expect that there may be holidays in the range, and that those holidays are in the named range "holidays," then you'll need to go back to using NETWORKDAYS in the formula:
=NETWORKDAYS(A1,B1,holidays)+SUMPRODUCT(-- (WEEKDAY(ROW(INDIRECT(A1&":"&B1)))=7),-- (NOT(ISNUMBER(MATCH(ROW(INDIRECT(A1&":"&B1)) ,holidays,0)))))
Other variations of what constitutes the work days in a week have been covered by Chip Pearson at his site:
http://www.cpearson.com/excel/betternetworkdays.aspx
ExcelTips is your source for cost-effective Microsoft Excel training. This tip (12450) applies to Microsoft Excel 2007 and 2010. You can find a version of this tip for the older menu interface of Excel here: Specifying Different Weekends with NETWORKDAYS.
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2016-03-12 05:41:29
Michael (Micky) Avidan
@Robert,
To the best of my knowledge, the NETWORKDAYS.INTL function was introduced in 2010 version and this tip refers to ver. 2007 as well.
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Michael (Micky) Avidan
“Microsoft® Answers" - Wiki author & Forums Moderator
“Microsoft®” MVP – Excel (2009-2016)
ISRAEL
2016-03-11 13:54:23
Robert
Why not use the NETWORKDAYSINTL ? Very easy to use.
NETWORKDAYS.INTL(start_date,end_date,weekend,holidays)
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Please Note:
This article is written for users of the following Microsoft Excel versions: 2007 and 2010. If you are using an earlier version (Excel 2003 or earlier), this tip may not work for you. For a version of this tip written specifically for earlier versions of Excel, click here: 
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