In 2018, Pokémon GO introduced the concept of Raid Days. These are days where, for three hours, a certain Pokémon will dominate raids at every single Pokémon Gym in the game with a three hour long timer. Each region has the event at different times. Click the Raid Day for more details

PictureNameDurationFocusSpecial Move
Suicune DaySuicune Day August 17th 2019 Suicune
Entei DayEntei Day July 14th 2019 Entei
Raikou DayRaikou Day June 29th 2019 Raikou
Lapras DayLapras Day May 25th/26th 2019 Lapras Lapras - Ice Shard
Lapras - Ice Beam
Gengar DayGengar Day November 3rd 2018 Gengar Gengar - Lick
Gengar - Psychic
Moltres DayMoltres Day September 8th 2018 Moltres Moltres - Sky Attack
Zapdos DayZapdos Day July 21st 2018 Zapdos Zapdos - Thunder Shock
Articuno DayArticuno Day July 7th 2018
August 4th 2018
Articuno Articuno - Hurricane