April Pokémon GO Community Day features increased spawns of Bagon, 3-hour Lures, triple XP and exclusive move for Salamence

The next Pokémon GO Community Day will occur on Saturday, April 13, 2019, from 3:00 p.m. to 6:00 p.m. in your local time zone. Participants will have the opportunity to catch plenty of Bagon during the three-hour span, and if you evolve Shelgon (the evolved form of Bagon) into Salamence during the event or up to one hour after the event, your Salamence will know a special move that it is normally unable to learn. This move will be available only to Salamence evolved during Community Day. Additionally, Lures will last for three hours and Trainers will earn three times the normal XP for catching Pokémon during the hours of the event.

Source: Official Pokémon GO Community Day events page and @PokemonGoApp