I know it sounds ridiculous, but imagine a Big Bang Theory timeline. :p
The Big Bang Theory
Young Sheldon
Georgie & Mandy's First Marriage
Stuart Fails to Save the Universe
The fact that there's a multiverse armageddon in the next show... wtf?
That's impossible. Superman exists in the movie's present day, which means it has to be set after 2022 (realistically, 2025). I think we'd probably just have to ignore either the Thursday or the 4th.