Overwatch 2 release date, time, and when Overwatch shuts down

techradar.com:

Overwatch 2 is launching its free-to-play, early access PvP mode at the start of October – and saying goodbye to Overwatch.  

Blizzard is splitting up the Overwatch 2 release, with the long-anticipated PvE coming sometime in 2023. But the free-to-play PvP is coming to consoles and PC first, on Tuesday, October 4.

We're going to see a ton of new features rolling out after launch, like a new guild system, battle pass (that takes a lot of grinding to progress through), and new characters. But we'll also see some things scrapped, and for the better. Loot boxes are out and the original Overwatch as we know it will be replaced by Overwatch 2 entirely. 

Overwatch 2 PvP is coming to PC, PS4, Xbox One, PS5, Xbox Series X, Xbox Series S, and Nintendo Switch. And here's when you can get stuck in.

Overwatch 2 free-to-play PvP goes live on Tuesday, October 4, and replaces the original Overwatch outright. There will be a whopping 27-hour window of downtime between the Overwatch 1 servers going offline and Overwatch 2 servers going live, so use that as you will.

A forum post(opens in new tab) has helpfully dug up the text in the Overwatch 1 client laying out the approximate time that Overwatch 2 goes live.  So bar anything going terribly awry, here's when you can expect to start playing in your time zone:

Overwatch will be going offline before Overwatch 2 goes live. So there'll be an interim void that you can use a mourning period, to go get some fresh air, or to dabble in Destiny 2 while you wait. 

Blizzard has confirmed that Sunday, October 2 is the last full day that Overwatch 1 players can enjoy the game. The servers will go offline on Monday, October 3, and thanks to the same forum post giving the approximate hour in the Pacific time