New raids pop up every month in Pokémon Go. These raids provide tough challenges for trainers to capture worthy and powerful Pokémon to add to their collection. March features a handful of unique choices, and some limited-time events players can join. These limited events feature legendary Pokémon returning to the game, available to anyone looking to add a particular choice to their collection.
Raids
These are all of the raids players can potentially find if they stumble across a raid egg about to hatch. Many of them vary in difficulty, though.
Limited-time Legendary Raids
These legendary raids are only available for a certain duration. You want to make sure to go after them as quickly as possible when they do become available. Niantic is only making them available for a single weekend throughout March, and two of them have exclusive abilities available to them if you capture them.
All of the start and end times happen in your local timezone.