Berlin, Paris, Amsterdam, and other Central European cities maintain strong business ties with the US East Coast. Automotive companies, pharmaceutical firms, and tech startups coordinate across this 6-hour gap daily.
CET is 6 hours ahead of EST. A 3 PM meeting in Berlin is 9 AM in New York. The European afternoon overlaps with the American morning, creating a workable collaboration window of roughly 9 AM–12 PM Eastern / 3–6 PM Central European.
The EU and US switch to daylight saving on different dates. Europe changes on the last Sunday of March, while the US changes on the second Sunday. This creates a two-to-three-week window in March where the gap is only 5 hours. A similar mismatch occurs in October/November when Europe falls back before the US does.
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