Copenhagen is 4 hours ahead of Brasília
Best overlap: 8:00 AM to 2:00 PM in Brasília is 12:00 PM to 6:00 PM in Copenhagen.
Keep meetings inside 8:00 AM to 2:00 PM in Brasília — that maps to 12:00 PM to 6:00 PM in Copenhagen. Despite the 4-hour difference, a 6-hour overlap keeps things simple and gives both teams breathing room. Because Copenhagen and Brasília don't both observe daylight saving, plan to re-check the overlap around March and November.