São Paulo is 5 hours behind Bucharest
Best overlap: 1:00 PM to 6:00 PM in Bucharest is 8:00 AM to 1:00 PM in São Paulo.
The hours that work for both Bucharest and São Paulo are 1:00 PM to 6:00 PM (Bucharest) and 8:00 AM to 1:00 PM (São Paulo). São Paulo is 5 hours behind Bucharest, leaving about 5 hours of shared hours — plan recurring calls early in that window to leave buffer. A quick caveat — Bucharest's clocks move for daylight saving and São Paulo's don't, so the times here are right for only part of the year.