The Pokémon GO Halloween event will run until 1pm PT/3pm CT/4pm ET on November 2, 2017.
The game is going to be adding its first third generation Pokémon to the game. This year’s Halloween event will bring Banette, Sableye, and Shuppet into the game when it begins at 12pm PT/2pm CT/3pm ET on October 20, 2017.
In addition to the generation three ghost Pokémon, it will also bring Pikachus in witch hats to the game.
You can get twice as much Candy as usual from catching, hatching, transferring, and walking with Pokémon.