Brasília is 4 hours behind Vienna
Best overlap: 12:00 PM to 6:00 PM in Vienna is 8:00 AM to 2:00 PM in Brasília.
Both teams are at their desks between 12:00 PM to 6:00 PM in Vienna and 8:00 AM to 2:00 PM in Brasília. A 6-hour overlap gives you real choice here — early or late in the window both work comfortably. The difference isn't constant year-round: Vienna adjusts for daylight saving while Brasília holds steady.