What is the criteria for scheduling a task on the calendar using filter view?

[Joel Walsh]

Using the calendar type 'Filter'

Event start = Start Date

Event End = Due Date

Calendar View set to 'Day'

My task has a start and end date and appears in the 'All Day' section of the schedule for that day. I cannot drag it down from 'All Day' to the schedule for that day to a specific time. How do I achieve this ? 

Thanks