Returns the order of the weekday in the month for a given date. This is the inverse operator of NxNWKDAY.
- is the serial date number that represents the given date. If missing, the current date is used.
- Excel stores dates as sequential serial numbers so they can be used in calculations. By default, January 1, 1900 is serial number 1, and January 1, 2008 is serial number 39448 because it is 39,448 days after January 1, 1900.
- Most functions automatically convert date values to serial numbers.
- Hans-Peter Deutsch, Derivatives and Internal Models, Palgrave Macmillan (2002), ISBN 0333977068