Here’s the latest on when the new episode of IT: Welcome to Derry airs.

• Episode 3 has already released: November 9, 2025, at 9:00 PM ET on HBO and HBO Max. This aligns with the Sunday schedule used for the series. [source coverage indicates Nov 9 release; times may vary by region]
• Episode 4 is scheduled to air next: November 16, 2025, at 9:00 PM ET on HBO/HBO Max. [coverage notes a Sunday air date for the following episode]
• UK/other regions often follow the US premiere date with a slight delay or simultaneous airing on Sky Atlantic/NOW depending on regional rights. Check local listings for your area. [regional rollout notes from coverage]

If you want, I can pull the most current regional listings for your country or streaming platform and confirm exact local air times.