Set hours in week view in calendar Is there any way to set hours I want to see in Week view in Calendar?
I do not need hours marked with red ellipsis's and need only hours marked with blue rectangle. 
If I try to resize window, then it compresses the whole view, i.e. everything becomes smaller and still shows hours I do not use...
How can I make Calendar to show only specified hours in Week view, which is most convenient in my daily activities - need to see the whole week at once.
Go to Calendar → Preferences → General and set Show 24 hours at a time to 12.

Additionally you can set Day starts at to automatically scroll to given time.