7.6 The DATE module
Type
The days of the week.
one-of(#"Sunday", #"Monday", #"Tuesday", #"Wednesday", #"Thursday", #"Friday", #"Saturday")
None.
system
date
The days of the week. This is the type of the return value of the date-day-of-week function.
date-day-of-week
date-day-of-week, page 136