NTHDAYOFMONTH

=NTHDAYOFMONTH(range,range,range,range)

year
Year of date
month
Month of date
day_index
1-7 where 1 is Monday through to 7 being Sunday
nth_day
The nth day of the month, e.g. 2nd Tuesday of the month

Return the nth day of a given month

lrobbo314

Well-known Member
Joined
Jul 14, 2008
Messages
3,957
Office Version
  1. 365
Platform
  1. Windows
NTHDAYOFMONTH takes 4 arguments which can be single cell references or ranges. The function will return the nth day of the month for a given year, month, day of week, and nth day of month.

Excel Formula:
=LAMBDA(year,month,day_index,nth_day,
    MAP(year,month,day_index,nth_day,
        LAMBDA(y,m,d,n,
            WORKDAY.INTL(
                DATE(y,m,0),
                n,
                REPLACE("111111",d,0,"0")
            )
        )
    )
)

COMPSTAT Template.xltx
ABCDEF
1YearMonthDay IndexNth DayFXDay
22022111111/7/2022Mon
32022112111/1/2022Tue
42022113111/2/2022Wed
52022114111/3/2022Thu
62022115111/4/2022Fri
72022116111/5/2022Sat
82022117111/6/2022Sun
92022111211/14/2022Mon
102022112211/8/2022Tue
112022113211/9/2022Wed
122022114211/10/2022Thu
132022115211/11/2022Fri
142022116211/12/2022Sat
152022117211/13/2022Sun
162022111311/21/2022Mon
172022112311/15/2022Tue
182022113311/16/2022Wed
192022114311/17/2022Thu
202022115311/18/2022Fri
212022116311/19/2022Sat
222022117311/20/2022Sun
232022111411/28/2022Mon
242022112411/22/2022Tue
252022113411/23/2022Wed
262022114411/24/2022Thu
272022115411/25/2022Fri
282022116411/26/2022Sat
292022117411/27/2022Sun
Data
Cell Formulas
RangeFormula
C2:C29C2=MOD(SEQUENCE(28,,0),7)+1
D2:D29D2=INT(SEQUENCE(28,,0)/7)+1
E2:E29E2=NTHDAYINMONTH(A2:A29,B2:B29,C2#,D2#)
F2:F29F2=TEXT(E2#,"ddd")
Dynamic array formulas.
 
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