Rio de Janeiro 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 Rio de Janeiro.
Your shared working hours run 1:00 PM to 6:00 PM in Bucharest (8:00 AM to 1:00 PM in Rio de Janeiro). You get roughly 5 hours of shared time, so aim for the middle of that window to keep the call comfortable for both teams. The window above shifts seasonally: Bucharest keeps daylight saving while Rio de Janeiro ignores it.