Just thought I'd relay something that it took me a while to figure out myself with the built-in HTC Calendar app. Yeah, I'm slow...
If you want a fairly "MS Outlook" view...
1st: Go to Calendar | Menu | More | Settings | Calendar View Setting | Start in | Select "Day View"
2nd: Go to Calendar | Menu | More | Settings | Calendar View Setting | Day View | Select "Time View"
Looks nice.
-Frank