AVIC-N1 Sub Display show time?

For the life of me I cannot figure out how to make the subdisplay (The display you see when the screen is closed) to display the time.  All it displays is the radio station or dvd track.  I know this is possible since it says in the manual under the definition of sub display (....displays the time...).

I cannot figure this out, and before someone says it...the display button definatly doesnt do it.

--John