2.4.6 Headings and labels
Kalender app
“Privat” can be both an event and a calendar, possibly even a “deck”. It’s all very generic. Changing these texts to be more specific would do a lot to make this interface more unserstandable. “My Calendar” to take an example.

The date in the week menu show a date format with year, month, day, which is not the expected format.

- Make sure that all labels clearly explain the function of their objects