Tokyo to Seattle Time Converter
Set a time in Tokyo and read it off in Seattle. Drag the slider to move through the day, or add more cities to the board.
Right now it is 3:42 PM in Tokyo and 11:42 PM in Seattle. Seattle is 16 hours behind Tokyo.
Every hour, side by side
Tokyo on the left, Seattle on the right, for a normal working day.
| Tokyo | Seattle | Overlap |
|---|---|---|
| 6 am | 2:00 PM previous day | Tokyo asleep |
| 7 am | 3:00 PM previous day | Outside 9–5 |
| 8 am | 4:00 PM previous day | Workable for both |
| 9 am | 5:00 PM previous day | Workable for both |
| 10 am | 6:00 PM previous day | Outside 9–5 |
| 11 am | 7:00 PM previous day | Outside 9–5 |
| 12 pm | 8:00 PM previous day | Outside 9–5 |
| 1 pm | 9:00 PM previous day | Outside 9–5 |
| 2 pm | 10:00 PM previous day | Seattle asleep |
| 3 pm | 11:00 PM previous day | Seattle asleep |
| 4 pm | 12:00 AM | Seattle asleep |
| 5 pm | 1:00 AM | Seattle asleep |
| 6 pm | 2:00 AM | Seattle asleep |
| 7 pm | 3:00 AM | Seattle asleep |
| 8 pm | 4:00 AM | Seattle asleep |
| 9 pm | 5:00 AM | Seattle asleep |
| 10 pm | 6:00 AM | Both asleep |
Who is awake when
Each column is one hour of the selected day in Tokyo. Click a column to move the whole board to that hour.
Planning a call between Tokyo and Seattle
Best window: 8 am to 10 am in Tokyo (4:00 PM to 6:00 PM in Seattle). There is no overlap inside a strict 9-to-5, but these hours fall within a normal 8-to-6 working day at both ends — one side takes it near the start of the day, the other near the end.
Daylight saving
Tokyo does not change its clocks. It stays on UTC+9 (JST) all year, so the gap to the other city only moves when the other city shifts.
Seattle is on UTC−7 (PDT). Clocks go back one hour on Sunday, November 1, 2026, moving it to UTC−8. Between that date and the other city’s own change, the gap between them is an hour different from usual.