Same timeslot settings for practitioner as the main calendar

In Practitioner Dashboard > Calendar the intervals are not displaying the same as in the main Calendar. In the main Calendar I've set an easy viewable 10 min interval, however in Practitioner Dashboard it's 5 min, but then only showing the time for every 15 min. This is confusing. I need same timeslot settings on 'calendar view' of practitioner dashboard as the main calendar (with timestamp line).