When planning a meeting with other people in your organization you use Availability Finder widget. It’s granularity from the beginning was one hour, no less no more. On the other hand in Calendar view you could configure that granularity, i.e. number of slots in an hour.
My changeset that awaits a review will fix this inconsistence. As you see on the picture below the same granularity will be used both in calendar view and availability finder.
Without my fix the whole slot is busy/tentative no matter how long the existing events of the user would take. In this case the user is free from 08:00 to 08:30 and busy from 08:30 to 09:00. With my fix the whole one hour slot will be split into “sub-slots”, so you can plan the new event easier and with more precise timing.
This change also fixes issues of the selection box (the dark rectangle at 06:30-07:00 above). Its moves on Previous/Next Slot action were a little bit unexpected sometimes. Now it’s more precise and uses the same granularity.