You can do the "strange" things with the templates :) If you read everything on this page, I'll almost guarantee that you'll understand what to do: http://ez.no/doc/ez_publish/technical_manual/3_6/reference/modules/content/fetch_functions/list
You can use a datetime field and sort on that. My experience (though short with eZ) is that dates when ordered won't display today, but a date and time will. Hope this made sense.
