What is the time difference between Seattle / Los Angeles and Tokyo?

16 hours (as of 2026-08-08; daylight saving can shift it by an hour part of the year).

What is the timezone friction score between Seattle / Los Angeles and Tokyo?

52/100 (Strained) — 1h of shared working time per day. Higher scores mean easier synchronous collaboration; add the rest of your team in the interactive scorer for the full picture and the 'lone wolf' flag.

When can teams in Seattle / Los Angeles and Tokyo meet during working hours?

With standard 09:00–18:00 working days, the shared window is 60 minutes: 17:00–18:00 in Seattle / Los Angeles and 09:00–10:00 in Tokyo.

Does this account for daylight saving time?

Yes — offsets are computed from the IANA timezone database for the specific date. Use the interactive planner to check any future date.

Timezone Overlap · 16h apart

Best meeting time between 🇺🇸 Seattle / Los Angeles and 🇯🇵 Tokyo

With standard 09:00–18:00 days, both cities are simultaneously at work for 60 minutes.

The golden window (2026-08-08)

🇺🇸 Seattle / Los Angeles: 17:00–18:00 local
🇯🇵 Tokyo: 09:00–10:00 local
UTC 00:00–01:00 · 60 minutes

Open this pair in the interactive planner → (live DST, custom hours, more cities)

Quick facts

Seattle / Los Angeles: UTC−7 (America/Los_Angeles)
Tokyo: UTC+9 (Asia/Tokyo)
Time difference: 16 hours (on 2026-08-08)

Frequently asked questions

What is the time difference between Seattle / Los Angeles and Tokyo?: 16 hours (as of 2026-08-08; daylight saving can shift it by an hour part of the year).
What is the timezone friction score between Seattle / Los Angeles and Tokyo?: 52/100 (Strained) — 1h of shared working time per day. Higher scores mean easier synchronous collaboration; add the rest of your team in the interactive scorer for the full picture and the 'lone wolf' flag.
When can teams in Seattle / Los Angeles and Tokyo meet during working hours?: With standard 09:00–18:00 working days, the shared window is 60 minutes: 17:00–18:00 in Seattle / Los Angeles and 09:00–10:00 in Tokyo.
Does this account for daylight saving time?: Yes — offsets are computed from the IANA timezone database for the specific date. Use the interactive planner to check any future date.