There is no time difference between Vienna and Berlin. Both cities use Central European Time (CET/CEST, UTC+1/+2). When it's 12:00 PM in Vienna, it's also 12:00 PM in Berlin.
Both cities observe daylight saving time on the same schedule as part of the European Union, so they remain synchronized year-round.
Any time works! Since both cities share the same timezone, you can schedule calls during standard business hours (9:00 AM - 6:00 PM) without any time conversion needed.
Vienna and Berlin are both major German-speaking capitals with rich cultural histories and growing tech scenes. Austria and Germany have strong economic ties, and many companies operate across both countries. Direct flights connect them in about 1.5 hours.