see the date and the day, like; 11 aug. sunday - 12 aug. monday
Show the date + the days
11 Aug Sunday
12 Aug Monday
13 Aug Tuesday etc...
I find it difficult to plann and organise if I can't see the day my appointment is on because I can't calculate on which day the date is.
The agenda has this format
AdminAppiens (Developer, Appiens) commented
Where exactly do you want to see day of the week? Agenda view and widget have day of the week.