DEFAULT MEETING DURATION (LENGTH)
Provide an option to set the default meeting length. On my teams, I prefer the default to be 50 minutes, so that there is 10 minutes on the tail of a meeting to process, take a "bio break", and get to the next meeting!
Dave C commented
Give an option for "speedy meetings" or "quick meetings" similar to how Google Calendar does. This means that my default, 30 minute meetings are scheduled for 25 minutes, and 1 hour meetings are scheduled for 50 minutes. This optional setting helps improve productivity by allowing a healthy amount of buffer between appointments. Doing this manually in Outlook, and doing it per appointment, is very slow and difficult.
Capobianco, Leanne J. commented
It would be greatly helpful if the calendar was setup for 15minutes intervals versus 30 minutes. It will allow to book 15 minute meetings without overlaps on the calendar.