Time difference
16 hours (Tokyo ahead). Tokyo uses JST; Seattle uses PDT.
Tokyo to Seattle Time
Tokyo is 16 hours ahead of Seattle.
Slide through time
- Night
- Morning
- Daytime
- Evening
Tap a city name to search and change it (partial names work). Drag the timeline (12 hours in view, scrolls forever). Keyboard: ← → , PgUp / PgDn 1 hour, Home = now.
Tokyo time to Seattle time
Tokyo is 16 hours ahead of Seattle. When it is 9:00 AM in Tokyo, Japan, it is 5:00 PM the previous day in Seattle, USA. Standard 9 AM to 6 PM working hours overlap for 1 hour: 9:00 AM to 10:00 AM in Tokyo (5:00 PM to 6:00 PM in Seattle).
Working-hours overlap
1 hour of shared 9 AM to 6 PM hours.
Daylight saving
Next change: Sun, Nov 1, 2026 (Seattle).
Tokyo to Seattle time conversion table
| Tokyo (JST) | Seattle (PDT) |
|---|---|
| 12:00 AM | 8:00 AM (previous day) |
| 1:00 AM | 9:00 AM (previous day) |
| 2:00 AM | 10:00 AM (previous day) |
| 3:00 AM | 11:00 AM (previous day) |
| 4:00 AM | 12:00 PM (previous day) |
| 5:00 AM | 1:00 PM (previous day) |
| 6:00 AM | 2:00 PM (previous day) |
| 7:00 AM | 3:00 PM (previous day) |
| 8:00 AM | 4:00 PM (previous day) |
| 9:00 AM | 5:00 PM (previous day) |
| 10:00 AM | 6:00 PM (previous day) |
| 11:00 AM | 7:00 PM (previous day) |
| 12:00 PM | 8:00 PM (previous day) |
| 1:00 PM | 9:00 PM (previous day) |
| 2:00 PM | 10:00 PM (previous day) |
| 3:00 PM | 11:00 PM (previous day) |
| 4:00 PM | 12:00 AM |
| 5:00 PM | 1:00 AM |
| 6:00 PM | 2:00 AM |
| 7:00 PM | 3:00 AM |
| 8:00 PM | 4:00 AM |
| 9:00 PM | 5:00 AM |
| 10:00 PM | 6:00 AM |
| 11:00 PM | 7:00 AM |
Daylight saving time
On Sun, Nov 1, 2026, Seattle switches from PDT to PST, so the difference becomes 17 hours (Tokyo ahead). On Sun, Mar 14, 2027, Seattle switches from PST to PDT, so the difference becomes 16 hours (Tokyo ahead).
How to use the meeting time converter
- Select either city name and search by city, time zone, abbreviation, or UTC offset.
- Drag the horizontal timeline, or use the arrow and Page Up/Page Down keys, to choose a moment.
- Read the matching time and date for both locations and use the color bands to compare working hours.
Frequently asked questions
What is the time difference between Tokyo and Seattle?
Tokyo is 16 hours ahead of Seattle. Tokyo currently uses JST and Seattle uses PDT.
When it is 9 AM in Tokyo, what time is it in Seattle?
It is 5:00 PM the previous day in Seattle.
What is the best time for a meeting between Tokyo and Seattle?
Standard 9 AM to 6 PM working hours overlap for 1 hour: 9:00 AM to 10:00 AM in Tokyo (5:00 PM to 6:00 PM in Seattle).
Does daylight saving time affect Tokyo and Seattle?
On Sun, Nov 1, 2026, Seattle switches from PDT to PST, so the difference becomes 17 hours (Tokyo ahead). On Sun, Mar 14, 2027, Seattle switches from PST to PDT, so the difference becomes 16 hours (Tokyo ahead).