Yes, the clock has been moved back several times. There's a nice graph on Wikipedia that provides a nice overview that is worth taking a look at: https://en.m

Yes, the clock has been moved back several times. There's a nice graph on Wikipedia that provides a nice overview that is worth taking a look at: https://en.m.wikipedia.org/wiki/Doomsday_Clock#/media/File%3ADoomsday_Clock_graph.svg https://en.m.wikipedia.org/wiki/Doomsday_Clock#/media/File%3... [edit: usage/grammar]