Calendar: hide select time period (like hours when we're asleep)

Anytime between 2AM to 8AM is the time when I'm not going to have any tasks, events, anything. But this time shows up on the calendar eating up the vertical screen real-estate.

It would be great to hide this 2AM to 8AM timeslot from the Akiflow calendar view.

I anyway have a block calendar where this time is blocked away to avoid any accidental meeting bookings anyway.