Seattle and Tokyo share no standard 9–5 working hours; the least disruptive option is 3:00 PM PDT (7:00 AM GMT+9).
Plan a meeting →| Detail | Value |
|---|---|
| Time difference | 16h (Tokyo is ahead) |
| Seattle 9–5 in Tokyo time | 1:00 AM–9:00 AM GMT+9 |
| Tokyo 9–5 in Seattle time | 5:00 PM–1:00 AM PDT |
| Overlap window | None during standard 9–5 hours |
| Least disruptive slot | 3:00 PM PDT = 7:00 AM GMT+9 |
| DST transitions (this year) | Seattle: March 8 / November 1 |
The 16h offset between Seattle and Tokyo is not just a number — it reshapes the entire rhythm of collaboration. Tokyo 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.
The less obvious scheduling risk is daylight saving time mismatch. Seattle and Tokyo may not shift their clocks on the same date. A meeting booked as "10 AM SEA" in January might show up as "11 AM SEA" in a colleague's calendar in March if your calendar app doesn't handle DST transitions correctly. Check the DST note on this page before setting up recurring meetings.
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.
Seattle is UTC-7 and Tokyo is UTC+9, a difference of 16h. 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, partially. Seattle observes daylight saving time; Tokyo does not. Seattle's clocks change around March 8 and November 1, shifting the gap between the two cities by 1 hour for part of the year.
Seattle and Tokyo have no overlap during standard 9 AM–5 PM business hours.
Under standard 9–5 schedules, no. The 16h 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.