Brasília is 6 hours behind Addis Ababa
Best overlap: 2:00 PM to 6:00 PM in Addis Ababa is 8:00 AM to 12:00 PM in Brasília.
Addis Ababa and Brasília overlap from 2:00 PM to 6:00 PM (Addis Ababa) to the equivalent 8:00 AM to 12:00 PM in Brasília — that's your meeting window. Roughly 4 hours of shared hours means scheduling takes a little care — 2:00 PM in Addis Ababa / 8:00 AM in Brasília is a safe default.