Nairobi is 6 hours ahead of Brasília
Best overlap: 8:00 AM to 12:00 PM in Brasília is 2:00 PM to 6:00 PM in Nairobi.
Schedule calls for 8:00 AM to 12:00 PM in Brasília — your colleagues in Nairobi will be online from 2:00 PM to 6:00 PM. Nairobi is 6 hours ahead of Brasília, leaving about 4 hours of daily overlap — enough for most meetings if you don't leave them too late in the day.