The first objection to hiring in Central Europe is almost always the clock, and it deserves a straight answer rather than a reassurance. The overlap is real, it is limited, and whether it works depends far more on how your team operates than on the number of hours involved.
The actual numbers, without the spin
Central European time runs six hours ahead of US Eastern and nine ahead of Pacific. An engineer working a normal European day finishes around the time the US East Coast is getting started. Shifting an afternoon start gives a genuine overlap of roughly two to four hours with Eastern, and a narrower one with Pacific. That is the honest range. Anyone promising a full working day of overlap is either describing an engineer who will burn out or one who will quietly stop doing it after a month.
Two to four hours is more than most teams use well
The question is not how many hours overlap, it is what happens in them. Teams that use the window for standups, reviews, decisions and unblocking get a great deal out of it. Teams that schedule six hours of meetings and expect the engineering to happen afterwards would struggle with a colleague two desks away. Distributed work exposes how a team already communicates rather than creating a new problem.
What genuinely does not work
Roles that need continuous synchronous presence are a poor fit and it is better to say so. Live incident response on a US on call rotation. Pair programming as the default working mode. A role whose value is being in the room while executives think out loud. If the job is really about availability during US afternoons, hire for that, and do not pretend a time zone will bend.
What works better than people expect
Anything with a clear specification and a reviewable output does well. Backend and platform work, data engineering, migrations, hardening, the deep work that never gets done because nobody in the office has four uninterrupted hours. The gap that looks like a problem on a calendar turns into the quietest part of the day, when nobody can interrupt and the work actually moves.
The handover advantage nobody mentions
A team split across those hours gets something a single time zone cannot buy: work moving while the other half sleeps. A review left at the end of a US day is answered before the US morning. That only pays off if handovers are written down properly, which is a discipline most teams claim to have and few do. The teams that build it find it improves how they work with each other, not only across the gap.
Ask the question in the interview, not the job description
Overlap is a working agreement, not a fact about geography. Ask the engineer what hours they will actually hold, for how long, and what they will do when an incident lands outside them. A candidate who says two to four hours and means it is worth more than one who agrees to anything. The wrong answer is the enthusiastic one.
Every engineer we introduce is assessed on overlap and async working, not just on code. See how the assessment works.