Version: (using KDE 4.4.2) Installed from: Unspecified Linux In order to save height in the day and week view, it would be great if there were an option to have the hours half-height for the non-working hours. Generally there are less appointments in those hours anyway. Thanks.
The good engineers at Google also decided that this was a good idea: http://www.googletutor.com/reduce-google-calendar-clutter-by-hiding-morning-and-night-hours/
To be clear, the Google feature collapses hours specified by the user to show as a single row. I have mine set to collapse 0:00 to 7:00, so all events in that time frame show in a single row. Additionally, I have another collapse from 21:00 to 0:00 at the end of the day.