HOW TO DISPLAY DATE AND TIME

I checked the manuals and I believe that the function you want is not available within the camera menus.  The date, time, and lots of other information is included within each file that holds individual pictures.  The software you use to view and edit pictures should show the information to you and may allow you to manually add the date to the picture.  I use Photoshop Elements 6 (Mac) and it will allow me to put the date and time on a picture.  You might consider adding the date and time to the name of the picture file if you want a quick reference to the date and time