Adam Talking Superman on Twitter: "This Doomsday Clock scene looks incredible and intense as hell. https://t.co/3rp3FCgNnt" / Twitter
Have the events of Doomsday Clock made Golden, Silver, Bronze, and Modern Age Superman all Canon? Also, showed us there was a Superman before the Golden Age one? - Quora
Doomsday Clock Confirms Superman is The Center of DC Comics