I liked 3.6.18 3:27 am but have you considered what if the shirt-wearer is wearing a jacket, especially in the winter, where the front is readable but the back is covered
in that case the only visible part of the shirt would be a very narrow strip down the middle. there wouldn't be enough room to put any substantial reading material there, and if so, it would look quite awkward without the jacket, and still would have a tendency to be obscured with the jacket