Honolulu is 7 hours behind Brasília
Best overlap: 3:00 PM to 6:00 PM in Brasília is 8:00 AM to 11:00 AM in Honolulu.
Target 3:00 PM to 6:00 PM in Brasília, which lands at 8:00 AM to 11:00 AM for the Honolulu side. Since Honolulu is 7 hours behind Brasília, the workdays overlap by around 3 hours; 3:00 PM in Brasília (8:00 AM in Honolulu) makes a reliable recurring slot.