Networkingdays() an improved version of networkdays formula
We all know that networkdays() an extremely powerful and simple excel formula can help you calculate no. of working days between 2 given dates.
But there is one problem with it. It assumes 5 day workweek starting with Monday to Friday. Not all countries have workweek from Monday to Friday. As Incubus wrote to me in an e-mail,
In Excel, the function “networkdays” doesn’t work for users in the middle east ‘cos it counts Saturday & Sunday as weekend. This is good enough only if you live in elsewhere, but for us weekend is Friday & Saturday.
This got me thinking and I ended up writing a user defined formula (UDF) to calculate working days between 2 given dates with any criteria. This will be good for calculating payrolls for temporary workers, offshore partners and of course people working countries where Saturday or Sunday or not usually holidays.
Please download the NetWorkingDays Add-in if you want to use this function.
If you are curious what is inside, see the UDF code
How to use the NetWorkingDays() UDF?
Once you download the add-in, just install the add-in by,
- [in Excel 2003] By going to Tools > Addins > Browse
- [in Excel 2007] By going to Office Button > Excel Options > Addins > “Go button” > Browse
- Specify the location where you saved the downloaded file
Now that the add-in is installed, you can use the UDF by writing a formula like this:
The first argument is start date, the second one is end date and third one tells which days of week are working (Monday is 1 and Sunday is 7). So the above formula counts all the Mondays, Tuesdays, Wednesdays, Fridays and Saturdays between 01-06-2009 and 02-07-2019
Known Errors and Limitations
The formula returns #VALUE! error when you try really long durations (like trying to find all the workingdays between now and a century later)
Another thing is, you cannot feed a custom holiday list to this formula. But that is very easy to add on, so I didn’t bother.
So go ahead and give it a try
and tell me what you think…
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