Calculate number of working days (excluding holydays) month by month

C

cbprado

New Member
Joined
Oct 26, 2018
Messages
10
This is to calculate # of workdays per month in a project

A2 and B2 I´ll have start and end dates, c1 - q1 I´ll have the months (jan-dec)

holydays will be on a named array sized 2cx8r.

thanx
 

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Perhaps:

ABCDEFGHIJKLMN
8/8/2019

<tbody>
[TD="align: center"]1[/TD]
[TD="align: right"][/TD]
[TD="align: right"][/TD]
[TD="align: right"]Jan[/TD]
[TD="align: right"]Feb[/TD]
[TD="align: right"]Mar[/TD]
[TD="align: right"]Apr[/TD]
[TD="align: right"]May[/TD]
[TD="align: right"]Jun[/TD]
[TD="align: right"]Jul[/TD]
[TD="align: right"]Aug[/TD]
[TD="align: right"]Sep[/TD]
[TD="align: right"]Oct[/TD]
[TD="align: right"]Nov[/TD]
[TD="align: right"]Dec[/TD]

[TD="align: center"]2[/TD]
[TD="align: right"]2/25/2019[/TD]
[TD="align: right"]10/15/2019[/TD]
[TD="align: right"]0[/TD]
[TD="align: right"]3[/TD]
[TD="align: right"]20[/TD]
[TD="align: right"]21[/TD]
[TD="align: right"]22[/TD]
[TD="align: right"]20[/TD]
[TD="align: right"]23[/TD]
[TD="align: right"]21[/TD]
[TD="align: right"]21[/TD]
[TD="align: right"]10[/TD]
[TD="align: right"]0[/TD]
[TD="align: right"]0[/TD]

[TD="align: center"]3[/TD]
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[TD="align: center"]5[/TD]
[TD="align: right"]1[/TD]
[TD="align: right"]2/5/2019[/TD]
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[TD="align: center"]6[/TD]
[TD="align: right"]2[/TD]
[TD="align: right"]2/27/2019[/TD]
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[TD="align: center"]7[/TD]
[TD="align: right"]3[/TD]
[TD="align: right"]3/1/2019[/TD]
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[TD="align: center"]8[/TD]
[TD="align: right"]4[/TD]
[TD="align: right"]4/9/2019[/TD]
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[TD="align: center"]9[/TD]
[TD="align: right"]5[/TD]
[TD="align: right"]5/6/2019[/TD]
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[TD="align: center"]10[/TD]
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[TD="align: center"]11[/TD]
[TD="align: right"]7[/TD]
[TD="align: right"]10/11/2019[/TD]
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[TD="align: center"]12[/TD]
[TD="align: right"]8[/TD]
[TD="align: right"]12/12/2019[/TD]
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</tbody>
Sheet3​

[TABLE="width: 85%"]
<tbody>[TR]
[TD]Worksheet Formulas[TABLE="width: 100%"]
<tbody>[TR="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=DAE7F5]#DAE7F5[/URL] "]
[TH]Cell[/TH]
[TH="align: left"]Formula[/TH]
[/TR]
[TR]
[TH="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=DAE7F5]#DAE7F5[/URL] "]C2[/TH]
[TD="align: left"]=MAX(0,NETWORKDAYS(MAX($A$2,C1),MIN($B$2,EOMONTH(C1,0)),INDEX(HolyDays,0,2)))[/TD]
[/TR]
</tbody>[/TABLE]
[/TD]
[/TR]
</tbody>[/TABLE]


[TABLE="width: 85%"]
<tbody>[TR]
[TD]Workbook Defined Names[TABLE="width: 100%"]
<tbody>[TR="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=DAE7F5]#DAE7F5[/URL] "]
[TH]Name[/TH]
[TH="align: left"]Refers To[/TH]
[/TR]
[TR]
[TH="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=DAE7F5]#DAE7F5[/URL] "]HolyDays[/TH]
[TD="align: left"]=Sheet3!$A$5:$B$12[/TD]
[/TR]
</tbody>[/TABLE]
[/TD]
[/TR]
</tbody>[/TABLE]



Note that the values in C1:N1 are actual dates, the 1st of each month, and I use a custom format of mmm to just show the month. Range A5:B12 is the HolyDays range, you can of course put it anywhere. If you have different weekend requirements, you can use NETWORKDAYS.INTL instead.
 
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