World Time ZonesHome › Difference from Japan › Seattle
Time difference: Japan and Seattle
Last updated:
Difference now−16 hSeattle is 16 h behind Japan
Time in Seattle07:10UTC−7
Time in Japan23:10UTC+9
Changes per year2due to DST
Weekday 9–18 overlap1 h
Difference by month (2026, 1st of each month)
| Month | Difference |
|---|---|
| Jan | −17 h |
| Feb | −17 h |
| Mar | −17 h |
| Apr | −16 h |
| May | −16 h |
| Jun | −16 h |
| Jul | −16 h |
| Aug | −16 h |
| Sep | −16 h |
| Oct | −16 h |
| Nov | −17 h |
| Dec | −17 h |
Days in 2026 at each difference
127 d
238 d
Japan → Seattle conversion (today)
| Japan | Seattle |
|---|---|
| 00:00 | 08:00 (-1 d) |
| 01:00 | 09:00 (-1 d) |
| 02:00 | 10:00 (-1 d) |
| 03:00 | 11:00 (-1 d) |
| 04:00 | 12:00 (-1 d) |
| 05:00 | 13:00 (-1 d) |
| 06:00 | 14:00 (-1 d) |
| 07:00 | 15:00 (-1 d) |
| 08:00 | 16:00 (-1 d) |
| 09:00 | 17:00 (-1 d) |
| 10:00 | 18:00 (-1 d) |
| 11:00 | 19:00 (-1 d) |
| 12:00 | 20:00 (-1 d) |
| 13:00 | 21:00 (-1 d) |
| 14:00 | 22:00 (-1 d) |
| 15:00 | 23:00 (-1 d) |
| 16:00 | 00:00 |
| 17:00 | 01:00 |
| 18:00 | 02:00 |
| 19:00 | 03:00 |
| 20:00 | 04:00 |
| 21:00 | 05:00 |
| 22:00 | 06:00 |
| 23:00 | 07:00 |
Overlapping office hours today (09–18 local)
09:00 Japan = 17:00 Seattle
Clock changes 2026–2027
| Place | Local time | Change |
|---|---|---|
| Seattle | 2026-03-08 03:00 | UTC−8 → UTC−7 |
| Seattle | 2026-11-01 01:00 | UTC−7 → UTC−8 |
| Seattle | 2027-03-14 03:00 | UTC−8 → UTC−7 |
| Seattle | 2027-11-07 01:00 | UTC−7 → UTC−8 |
Calculated from the IANA Time Zone Database; governments can change their rules.
About this page
Seattle is 16 h behind Japan.