https://www.gamespot.com/articles/second-pokemon-go-community-day-event-takes-place-/1100-6456943/

Pokemon Go's second Community Day is right around the corner. The real-world event takes place this Saturday, February 24, and will give players around the world another opportunity to earn in-game bonuses and obtain a rare Pokemon with a special move.

Unlike past real-world events for Pokemon Go, Community Day isn't localized at a specific venue; rather, the event takes place during a set window of time, which will differ depending upon your region. In the US, the Community Day kicks off at 11 AM PT / 2 PM ET and runs until 2 PM PT / 5 PM ET, while Europe's event begins at 10 AM GMT and concludes at 1 PM GMT.