Allow for time within DPA to be shown as 24hr instead of am/pm.
Also, allow it to be formatted. In the US, we use mm/dd/yyyy and in EMEA, they use dd/mm/yyyy. Make it flexible.
24hr time - yes please!
Make the date default to user locale date formats for display purposes, but allow user to select/specify other formats if required e.g.just DD-MM or whole ISO date format YYYY-MM-DD etc.