Ajuda del LibreOffice 25.2
Retorna el dia de la setmana per al valor de data determinat. El dia es retorna com un nombre enter entre 1 (diumenge) i 7 (dissabte) si no s'indica cap tipus, o si s'indica tipus=1. Per a altres tipus, vegeu la taula següent.
WEEKDAY(Number [; Type])
Nombre, com a valor de data, és un decimal per al qual es retornarà el dia de la setmana.
Tipus és opcional i determina el tipus de càlcul.
| Tipus | Número del dia de la setmana retornat | 
|---|---|
| 1 o omés | Entre 1 (diumenge) i 7 (dissabte). Per a compatibilitat amb el Microsoft Excel. | 
| 2 | Entre 1 (dilluns) i 7 (diumenge). | 
| 3 | Entre 0 (dilluns) i 6 (diumenge) | 
| 11 | Entre 1 (dilluns) i 7 (diumenge). | 
| 12 | Entre 1 (dimarts) i 7 (dilluns). | 
| 13 | Entre 1 (dimecres) i 7 (dimarts). | 
| 14 | Entre 1 (dijous) i 7 (dimecres). | 
| 15 | Entre 1 (divendres) i 7 (dijous). | 
| 16 | Entre 1 (dissabte) i 7 (divendres). | 
| 17 | Entre 1 (diumenge) i 7 (dissabte). | 
These values apply only to the standard date format that you select under .
=WEEKDAY("2000-06-14") returns 4 (the Type parameter is missing, therefore the standard count is used. The standard count starts with Sunday as day number 1. June 14, 2000 was a Wednesday and therefore day number 4).
=WEEKDAY("1996-07-24";2) returns 3 (the Type parameter is 2, therefore Monday is day number 1. July 24, 1996 was a Wednesday and therefore day number 3).
=WEEKDAY("1996-07-24";1) returns 4 (the Type parameter is 1, therefore Sunday is day number 1. July 24, 1996 was a Wednesday and therefore day number 4).
=WEEKDAY("2017-05-02";14) returns 6 (the Type parameter is 14, therefore Thursday is day number 1. May 2, 2017 was a Tuesday and therefore day number 6)
=DIASETMANA(ARA()) retorna el número del dia actual.
To obtain a function indicating whether a day in A1 is a business day, use the IF and WEEKDAY functions as follows: 
IF(WEEKDAY(A1;2)<6;"Business day";"Weekend")