What's Happening on Pokemon Day in Pokemon GO? Here's what's happening on Pokemon Day in Pokemon GO. Today, the world celebrates Pokemon Day. February 27, 2021 marks 25 years since the world was graced by the presence of the Pocket Monsters. To celebrate, yesterday, The Pokemon Company gave us a glimpse at the future of the Pokemon series – including New Pokemon Snap, Diamond and Pearl Remakes and a whole new adventure, Pokemon Legends: Arceus. Alongside that, they offered an explanation of what’s happening in Pokemon GO for Pokemon Day. Pokemon Day in Pokemon GO Surprisingly, Niantic and The Pokemon Company aren’t going crazy celebrating in the AR mobile hit. Last weekend, players had the opportunity to participate in the