Bucharest is 5 hours ahead of Rio de Janeiro
Best overlap: 8:00 AM to 1:00 PM in Rio de Janeiro is 1:00 PM to 6:00 PM in Bucharest.
Your shared working hours run 8:00 AM to 1:00 PM in Rio de Janeiro (1:00 PM to 6:00 PM in Bucharest). 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.