Events

Events are either in-game or both in-game and real-world celebrations for special occasions. Events can last one day or several weeks and grant trainers a chance to complete their Pokédex by increasing the chance of acquiring rare or special Pokémon.

During them, there are various temporal changes to the game that can be applied (bonuses and perks for trainers) such as:
 * Specific Pokémon spawn increased.
 * Specific Pokémon in temporary Eggs, Raid Battles and Research tasks.
 * Specific Pokémon wearing costumes.
 * Extended duration of Star Piece, Lucky Egg, Lure Modules and Incense.
 * Increase of Incubator efficiency.
 * Reduced buddy distance and trading cost.
 * Multiplied Stardust, Candy and XP for several actions such as hatch, catch, transfer, evolving and battling.
 * Release of specific Pokémon species, forms, shiny and shadow variants.
 * Release of Special or Timed Research tasks.
 * Release or availability of avatar items and stickers.
 * Specific attacks.
 * Special shop offer.

Each event can vary in its availability:
 * Ticketed events: most events are free to play, but some can only be accessible by tickets. In some events, non-ticket holders can access some bonuses from the ticketed events.
 * Regional events: some events are only available in specific regions. For instance, some events happened only on Europe or Japan.
 * Real-world events: some events can be a real-world event or be tied-in with some real-world event.

In this wiki, the events are classified in three major excluding categories:
 * Unique events: events that happened only once.
 * Seasonal events: events that happened more than once, in general, once a year. Normally, these events are related to real-world holidays.
 * Recurring events: events that happened more than once a year, and are not seasonal events.

For a complete list of Unique, Seasonal and Recurring events, and more information about each event:

Unique Events
Events that happened only once in the game, are in the Unique events category. These events can happen due several reasons such as, but not limited to:
 * Promotion of a Niantic game, or Pokémon Company game or movie. For instance, Ingress Prime Celebration to celebrate the release of Ingress Prime and Alolan Exeggutor Event to celebrate the announcement of Let's Go, Pikachu & Let's Go, Eevee.
 * Start or end of a Season. For instance, Welcome to Alola and Alola to Alola to celebrate the start and end of Season of Alola.
 * Release of a new game mechanic. For instance, A Mega Moment for the release of Mega levels
 * Real-word dates. For instance, World Tourism Day

Seasonal events
Events that happened more than once, in general, once a year, are in the Seasonal events category. This includes:
 * events are related to real-world holidays such as Christmas and holiday season, Halloween and Day of the Dead, New Year and Lunar New Year, Valentine's Day, Earth Day, Easter, Solstice and Equinox,Festival of Colors, and April Fools' Day.
 * unique Pokémon GO events that happened to get a re-run in other years and are also included in this category (Adventure Week, Battle Showdown, Bug Out, Fashion Week, Friendship Event, Psychic Spectacular, Water Festival, Stardust Blast, Hatchathon, Secrets of the Jungle, Kanto, Hoenn, and Sinnoh Celebration).
 * the yearly events Pokémon GO Anniversary, the Pokémon Day event, the Pokémon World Championships tie-in event, Global Challenge, and Pokémon GO Week in Korea are also included in this category.

Recurring events
Events that happened more than once a year, and are not seasonal events, are recurring events. In this category are included Pokémon GO Fest, Pokémon GO Safari Zones, Community Days, Pokémon GO Special Weekends, Limited Researches, Incense Days and Friendship Days.

There are also some event-like game mechanics such as

Community Day
Community Day is the first regular recurring event that mostly lasts few-hours on one, particular day of each month and during it players can catch a Pokémon with an exclusive move that cannot be obtain normally in game play. During this event players have a significantly higher chance of obtaining shiny variant of featured Pokémon. It occurs regularly since Jan, 2018.

Pokémon GO Fest
Pokémon GO Fest is a recurring, regional, real-world event, that happens in different locations around the globe. The events give Trainers the ability to catch region-exclusive Pokémon that do not usually appear in these regions. It occurs irregularly since Aug, 2017.

Pokémon GO Safari Zone
Pokémon GO Safari Zone is a recurring, regional, real-world event, that happens in different locations around the globe. The events give Trainers the ability to catch region-exclusive Pokémon that do not usually appear in these regions. It occurs irregularly since Aug, 2017.

Pokémon GO Special Weekend
Pokémon GO Special Weekend is a recurring, regional, real-world event. It occurs irregularly since Jul, 2018.

Limited Research
Limited Research is a recurring that is hosted for a few hours and features exclusive Research tasks that may reward a Trainer with a shiny Pokémon. It occurs irregularly since Jan, 2019.

Incense Day
Incense Day is recurring event in which incense are the only methods to attract the featured Pokémon. Each event has a specific Pokémon with high spawn rate throughout the process, as well as other themed-Pokémon in divided hours. An Incense special offer is available in the shop during these events.

Friendship Day
Friendship Day is a recurring event. It occurs regularly since Apr, 2021.

Special Raid Challenge
Special Raid Challenge is a recurring event that is hosted during a three-hour window and features a Pokémon as Raid Boss. This Pokémon may know one or more limited or legacy attacks and may also have a chance to be shiny. All Trainers receive up to five Raid Passes from Gyms at no cost. It occurs irregularly since Jul, 2018.

Special Raid Event
Special Raid Event (also dubbed Week or Weekend) is a recurring event that is hosted during a short period of time and features a returning Legendary Raid Boss which may have a chance to be shiny. It occurs irregularly since Dec, 2018.

Legendary Raid Hour
Legendary Raid Hour is recurring event that turns every available Gym to a specific Raid Boss during one hour. It usually occurs on Wednesday from 6 p.m. to 7 p.m. in local time zone. It occurs regularly since Mar, 2019.

Pokémon Spotlight Hour
Pokémon Spotlight Hour is weekly event that took place for the first time in February, 2020. It occurs on Tuesdays and lasts one hour. During the event there is increased number of Pokémon to appear in wild. When particular Pokémon species is featured in this event and it has its Shiny form released prior to the specific Spotlight Hour, there is a higher probability of catching it due to the increased spawns. It occurs regularly since Feb, 2020.

Pokémon Air Adventures
Pokémon Air Adventures is a recurring, regional event that took place for the first time in July, 2021. It features specific regional spawns to celebrate travel around the world.

GO Battle Day
GO Battle Night is an recurring event revolving around GO Battle League. Trainers can complete additional sets of GO Battle League matches and stardust bonus may be applied.

Nest migrations
Nest Migrations are the technical changes to the game rather than ongoing events in which Pokémon Nests changes species which spawns in the specific locations. It occurs regularly since Jul, 2016.

Mystery Bonus Hour
Mystery Bonus Hour was a recurring event that solely featured bonuses for Candy, Stardust, or XP. It occurred on Thursday evenings in local time zones before being discontinued as a separate event and merged with Pokémon Spotlight Hour. It is discontinued and occurred from Feb, 2020 to Apr , 2020.

Event Pokémon
Event Pokémon are Pokémon that have unique accessories or clothing such at hats, glasses or scarves and can only be obtained during an special event. They cannot be mass-transferred, similar to Legendary, Mythical, or Shiny Pokémon.