Stockholm is 5 hours ahead of São Paulo
Best overlap: 8:00 AM to 1:00 PM in São Paulo is 1:00 PM to 6:00 PM in Stockholm.
If you set up a recurring sync, 8:00 AM to 1:00 PM in São Paulo (1:00 PM to 6:00 PM in Stockholm) is the natural home for it. Around 5 hours of overlap is enough to work comfortably, as long as meetings don't drift to the end of one team's day. Remember that Stockholm shifts for daylight saving and São Paulo doesn't, so recalculate the overlap after each clock change.