when does it welcome to derry take place

It looks like you’re asking when the It prequel series Welcome to Derry takes place. The widely reported answer is that Welcome to Derry is set in the 1960s, specifically around 1962, serving as an origin story that occurs roughly four decades before the events of It (the 2017 film) and about 27 years before the events of the original It chapters. This positions the narrative as a historical prequel that delves into Pennywise’s backstory and the early disturbances in the town of Derry, Maine. If you’d like, I can pull in the latest episode-by-episode details, cast notes, or connections to other Stephen King works to give you a fuller picture of how the 1960s setting ties into the broader King multiverse.