This app was mentioned in 1 comment, with an average of 2.00 upvotes
The app Timer Camera can display this info, but you might need to enable it in the settings and take a photo first to get it to display.
Plus, it only includes the internal storage, not the external SD card.
Nevertheless, it's a pretty solid app.
https://play.google.com/store/apps/details?id=com.cae.timercamera