Vienna is 6 hours ahead of Atlanta. When it's 9:00 AM in Atlanta, it's 3:00 PM in Vienna. Both cities observe DST, maintaining the 6-hour difference year-round.
Atlanta uses ET (Eastern Time) while Vienna uses CET/CEST.
Optimal window: 8:00 AM - 11:00 AM Atlanta time (2:00 PM - 5:00 PM Vienna). Morning calls from Atlanta catch afternoon business hours in Vienna.
Austrian Airlines and connecting flights link Atlanta to Vienna International Airport.