has_day_of_week
Use it like this:
- [ #has/_day_of_week :: DayOfWeek ] or
- [ has_day_of_week :: DayOfWeek ]
The day of the week for which these opening hours are valid.
Relation describes that: [ #has_/domain :: EducationalOccupationalProgram, OpeningHoursSpecification ] ( #has_/name :: has_day_of_week ) ( #has_/range :: DayOfWeek )