Pokemon GO has many events running simultaneously; the developers at Niantic often align their events to real-time worldwide occasions. The recent in-game Dia de Muertos 2023 event starts on Wednesday, November 1, at 10 AM and ends on Thursday, November 2, at 8 PM Local Time. It exclusively celebrates the Mexican/American festival, honoring departed loved ones, and offers multiple bonuses, Shiny encounters, raid opportunities, and an exclusive Field Research quest.