Game time is a very important aspect of the game. Currently there is a small digital printing of game time at the lower right of a page. Of course you also can also do the math from the raspy voice of the quartermaster as he calls bells prior to reset.
Might I suggest a sundial image in the upper frame main image with perhaps a digital time display image in the center of the sundial or perhaps even mouse over display. A link to whatever you deem necessary could also be established.