Brasília is 7 hours ahead of Honolulu
Best overlap: 8:00 AM to 11:00 AM in Honolulu is 3:00 PM to 6:00 PM in Brasília.
Keep meetings inside 8:00 AM to 11:00 AM in Honolulu — that maps to 3:00 PM to 6:00 PM in Brasília. Brasília is 7 hours ahead of Honolulu, leaving about 3 hours of daily overlap — enough for most meetings if you don't leave them too late in the day.