Binary Clock It is a 24 hour clock, not a 12 hour clock. This means that one o'clock in the afternoon would be 13 (12+1) How to read: http://en.wikipedia.org/wiki/Binary_clock
I liked @asdfkl 's binary clock. I made the dots calculate on off using MOD function. Added numbers at bottom to show the numeric value of the "bits". Toggle numbers show/hide with space. Uses a message broadcast to synchronise the updates.