Seattle, WA to Thunder Bay: time difference
Thunder Bay is 3 h ahead of Seattle, WA. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Seattle, WA 11:31 11:31 AM Thunder Bay 14:31 2:31 PM You –:–
11:31 11:31 AM
Pacific Daylight Time · UTC-7
☀️ 07:33 · 🌙 18:17
14:31 2:31 PM
Eastern Daylight Time · UTC-4
☀️ 08:22 · 🌙 19:04
·
+3 h
Thunder Bay is 3 h ahead of Seattle, WA.
When you, Seattle, WA and Thunder Bay are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Seattle, WA
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇨🇦 Thunder Bay
3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM 1 1 AM 2 2 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Seattle, WA | 🇨🇦 Thunder Bay |
|---|---|---|
| Local time | 11:31 | 14:31 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Pacific Daylight Time | Eastern Daylight Time |
| UTC offset | UTC-7 | UTC-4 |
| Offset from Seattle, WA | — | +3 h |
| IANA zone | America/Los Angeles | America/Toronto |
| Daylight saving | On summer time → UTC-8, Nov 1, 01:00 | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 07:33 | 08:22 |
| Sunset | 18:17 | 19:04 |
| Daylight | 10 h 44 min | 10 h 42 min |
| People on this clock | 737,015 | 107,909 |
Compare Seattle, WA with another city
More comparisons with Seattle, WA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Seattle, WA and Thunder Bay: common questions
How many hours ahead of Seattle, WA, is Thunder Bay?
The clocks in Thunder Bay are 3 hours ahead of those in Seattle (UTC−4 and UTC−7).
If it is 9:00 AM in Seattle, WA, what time is it in Thunder Bay?
At 9:00 AM in Seattle, clocks in Thunder Bay show 12:00 PM.
What time is it in Thunder Bay at the end of the working day in Seattle, WA?
The working day in Seattle ends at 6:00 PM; in Thunder Bay it is 9:00 PM at that moment.
When is a good time to call Thunder Bay from Seattle, WA?
Between 9:00 AM and 3:00 PM in Seattle – that is 12:00 PM to 6:00 PM in Thunder Bay – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Thunder Bay compared with Seattle, WA?
The new day starts in Thunder Bay earlier: at 9:00 PM in Seattle it is already midnight there. Until 3:00 AM in Thunder Bay, Seattle is still on the previous day.
Does the time difference between Seattle, WA, and Thunder Bay change?
No. The clocks in Seattle and in Thunder Bay change on the same dates, so the difference stays 3 hours.
