Let's give it a try, it is Friday afternoon:
db2 => values(dayname(current date))
1
----------------------------------------------------------------------------------------------------
Friday
1 record(s) selected.
1
----------------------------------------------------------------------------------------------------
Friday
1 record(s) selected.
db2 => values(dayname(current date, 'de'))
1
----------------------------------------------------------------------------------------------------
Freitag
1 record(s) selected.
db2 => values(dayname(current date,'fr'))
1
----------------------------------------------------------------------------------------------------
vendredi
1 record(s) selected.
db2 => values(dayname(current date,'es'))
1
----------------------------------------------------------------------------------------------------
viernes
1 record(s) selected.
1
----------------------------------------------------------------------------------------------------
Freitag
1 record(s) selected.
db2 => values(dayname(current date,'fr'))
1
----------------------------------------------------------------------------------------------------
vendredi
1 record(s) selected.
db2 => values(dayname(current date,'es'))
1
----------------------------------------------------------------------------------------------------
viernes
1 record(s) selected.
db2 => values(dayname(current date,'in'))
1
----------------------------------------------------------------------------------------------------
Jumat
1 record(s) selected.
db2 => values(dayname(current date,'it'))1
----------------------------------------------------------------------------------------------------
Jumat
1 record(s) selected.
1
----------------------------------------------------------------------------------------------------
venerdì
1 record(s) selected.
If your language or country is not listed, try it yourself. Have a nice weekend.