Houston is 3 hours behind Brasília
Best overlap: 11:00 AM to 6:00 PM in Brasília is 8:00 AM to 3:00 PM in Houston.
Aim for 11:00 AM to 6:00 PM Brasília time — that's 8:00 AM to 3:00 PM over in Houston. Because you share 7 hours of the workday, there's no need to compromise; book the time that suits the meeting, not the map. Remember that Houston shifts for daylight saving and Brasília doesn't, so recalculate the overlap after each clock change.