https://www.gamespot.com/articles/pokemon-gos-next-community-day-event-announced/1100-6457723/

The third Pokemon Go Community Day has come and gone, but players already have an idea of what to expect from next month's event. Developer Niantic has announced the first details for the next Pokemon Go Community Day, including what bonuses and special Pokemon players will be able to earn this time.

The event takes place on Sunday, April 15, and as usual, it will be held during a three-hour window of time. Typically, Community Days run at different times depending on your region, but so far, Niantic has only revealed the time frame for North America. Like this month's event, the next Community Day kicks off in the region at 11 AM PT / 2 PM ET and concludes at 2 PM PT / 5 PM ET.