Well, if the rules are it has to be clock and be from AdaFruit,
There's here's another entry of mine...
DiggClock:

- DiggClock, current under development
- HexClock.jpg (32.02 KiB) Viewed 9411 times
Bought a Digg kit for my padawan,
Only problem was, Padawan soldered the chip in backwards,
So I cut it off, and swapped it around,
Which accounts for the strange look of the chip.
A little brain surgery and It's talking to a programmer.
The goal here is to leave the digg as stock as possible,
But turn it into a clock.
Since it's not enough digits for a proper clock,
I've recoded the firmware for turn it into a hexadecimal clock.
First digit is hours,
Second two are minutes.
c2e = 12:46
Currently, it's running way too fast,
And doesn't keep time when it goes to sleep,
But it's a start.
Still working on it.
Going to try adding a resonator,
Turn off the sleep mode and power over usb.