Brasília is 3 hours ahead of Houston
Best overlap: 8:00 AM to 3:00 PM in Houston is 11:00 AM to 6:00 PM in Brasília.
Target 8:00 AM to 3:00 PM in Houston, which lands at 11:00 AM to 6:00 PM for the Brasília side. The overlap is wide at 7 hours, so you can protect mornings for deep work and still find plenty of meeting time. Seasonal note: Houston uses daylight saving and Brasília doesn't, so double-check the times in your own months — they can move by an hour.