With the release of the Curse of Osiris DLC, Bungie have pushed Xur's arrival back a few hours. He'll now appear every Friday at 17:00 GMT (09:00 PST).
Xur has arrived in Destiny 2 once again, and will stick around until the Tuesday reset. His location is marked in your in-game director, so just mark his icon and follow your HUD. Here's where he is and what you should buy from him.
Check out the rest of Xur's possible stock in our Destiny 2 exotics guide.
Xur is on Titan this week, in a cubbyhole above a bunch of Fallen near the Rig landing zone. Set your waypoint to his marker on the world map. He is selling: