The clock hands are set by the Bulletin of the Atomic Scientists, a group formed by Manhattan Project scientists at the University of Chicago who helped build the atomic bomb but protested using it ...
According to scientists, the "fictitious time" is periodically adjusted, with the clock moving closer to midnight as global threats intensify. The adjustment of the clock is based on expert ...
Case in point: notorious clock builder [Shinsaku Hiura] took the good old split-flap display approach, and mixed things up by using a deck of playing cards to actually represent the time.