In form for scheduling events, I use one item for start time, and one for duration.
In start time item, I want to show time for complete day, for instance: 9:00am, 9:15am, .. 13:00pm...
And in second duration item to show only higher values then value in start time item. And to display duration in time like 9:30am (30 mins).
I found similar items in Group Calendar application on apex.oracle.com.
Thanks in advance!