London and Seattle share no standard 9–5 working hours; the least disruptive option is 3:00 PM GMT+1 (7:00 AM PDT).
Plan a meeting →| Detail | Value |
|---|---|
| Time difference | 8h (London is ahead) |
| London 9–5 in Seattle time | 1:00 AM–9:00 AM PDT |
| Seattle 9–5 in London time | 5:00 PM–1:00 AM GMT+1 |
| Overlap window | None during standard 9–5 hours |
| Least disruptive slot | 3:00 PM GMT+1 = 7:00 AM PDT |
| DST transitions (this year) | London: March 29 / October 25; Seattle: March 8 / November 1 |
The 8h offset between London and Seattle is not just a number — it reshapes the entire rhythm of collaboration. London clocks out while Seattle is still at lunch. Teams that don't plan this deliberately spend their overlap on firefighting instead of actual work.
Standard 9–5 hours don't overlap at this distance. The practical workaround depends on how often the teams need to actually sync. For daily standups, pick the least painful off-hours slot and rotate it. For ad hoc needs, async video (recorded + transcribed) beats live calls that one side has to attend at an inconvenient hour.
For any recurring sync between London and Seattle, set the calendar invite in one canonical timezone and confirm the other side sees the correct local time. DST transitions can silently shift the effective meeting time by an hour for several weeks without either party noticing until someone is waiting alone on the call.
For truly zero-overlap pairs, the most important investment is async infrastructure: a written daily digest each team can read at the start of their day, a shared decision log so nothing critical gets blocked waiting for a live reply, and a clear escalation path for genuine emergencies. With those in place, most distributed teams find they need far fewer live calls than they assumed.
London is UTC+1 and Seattle is UTC-7, a difference of 8h. This gap may shift by 1 hour during DST transitions.
There is no overlap during standard 9–17 hours. Consider a rotating schedule or an early/late meeting. TimeSync's standup planner can find the least-painful slot.
Yes. Both cities observe daylight saving time, but on different schedules. Seattle springs forward on March 8 and London on March 29, so the gap between them shifts by 1 hour during the spring and fall mismatch window.
London and Seattle have no overlap during standard 9 AM–5 PM business hours.
Under standard 9–5 schedules, no. The 8h gap means the two cities' business days do not overlap. Teams that need synchronous collaboration typically shift one side's hours, rotate the inconvenient slot fairly, or rely on async-first workflows with structured handoffs.