Returns the date for the nth occurrence of a weekday for the specified month and year.

Syntax NWKDOM(n, weekday, month, year)

Required Arguments n specifies the numeric week of the month that contains the specified day.
Range:1–5
Tip:N=5 indicates that the specified day occurs in the last week of that month. Sometimes n=4 and n=5 produce the same results.

weekday specifies the number that corresponds to the day of the week.
Range:1–7
Tip:Sunday is considered the first day of the week and has a weekday value of 1.

month specifies the number that corresponds to the month of the year.
Range:1–12

year specifies a four-digit calendar year.

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443  data _null_;
444     /* The last Monday in December of 2012. */
445     date=nwkdom(5,2,12,2012);
446     put date date9.;
447  run;

31DEC2012