User blog comment:TheBAT21/What Years are Arkham Origins, Asylum, City, and Knight set in, and how do you know for certain????/@comment-27124963-20151029015310

I've always kind of wondered this. I do, however, know that Batman: Arkham Asylum takes place in the month of February and starts a little ways before 12:00AM. I know that because of the board you have to scan for the riddle that unlocks Hush's biography. It gives the schedule for the 4th week of February, takes place on a Sunday/Monday night, and that Killer Croc transferred to Arkham Asylum at 00:00 hours.

Then there's Arkham Knight that takes place on October 31st. Yet it takes place 10 years after Arkham Origins. I found this out thanks to Firefly as he said that it's been 10 years since his and Batman's last encounter prior to BAK.

As to everything else? No idea. I'm still trying to figure out the timeframe for each of the games. And by that, I mean how far apart each games is to one another year wise. One site will tell me one thing yet another will tell me completely different. If I could find those out and go into deeper research, I might be able to give you a rough guestimate/hypotheses as to what years the games take place??