Many are thinking about the old photos that had the date branded on the photo but that's the OLD way and is easy to do during printing (yup, that's an app!)

Today the time/date is in what they call EXIF data so we never have to mess up the photo with the date and time.

Look again at the EXIF data. IRFANVIEW shows it by press the letter i.

More at http://exif.photofb.com/how-to-show-exif-info.php

If you want to print the photo with that information I'd want to know what apps you have now.
Bob