[support] Calendar's hours 10.00 to 16.00

I know I'm bothering you but there're some things I can't understand.. Date module generated a Calendar views: Node view: calendar_date (Calendar) Year, Month and Week views are ok, but on Day's views shows me up 10.00 to 16.00 hours only. I can't find where hours variable is, I want insert 24 hours instead of 7 hours..