I am trying to do all my calendaring within RTM, as well as task management. So far, my system has been to give tasks generic due dates (pick up the milk on Friday), but to give time-specific commitments a due date that includes a time (meet Bob on Friday at 2:15pm).

I would like to build a smart list that only includes the second sort of tasks, the ones with specific times. Is this possible? In case it matters, I would like this list both for exporting into another calendar, and for viewing on the iPhone app.

I know that I could accomplish the same goal with tagging, but I was hoping not to have to do anything extra to make it work.