When I take a photo on my HTC One X, the date and time that the picture was taken do not appear appear (printed) on the photo. I can't set the date or time in the settings, either. If I use a third party application, I can set the date/time and see the timestamp on the photo.
My old HTC Legend (Gingerbread) had an option to choose whether the timestamp would appear or not.
Is it a feature not supported by Android 4.x, or is it just because of HTC One X model? It was not present on Ice Cream Sandwich or since I've upgraded to Jelly Bean.