Hamburg is 4 hours ahead of Brasília
Best overlap: 8:00 AM to 2:00 PM in Brasília is 12:00 PM to 6:00 PM in Hamburg.
Target 8:00 AM to 2:00 PM in Brasília, which lands at 12:00 PM to 6:00 PM for the Hamburg side. Hamburg is 4 hours ahead of Brasília, but you'd hardly notice — 6 hours of shared hours makes this feel like working in neighbouring time zones. Don't be caught out by clock changes — Hamburg observes daylight saving and Brasília doesn't, so the offset varies by an hour through the year.