Seattle, WA to Sudbury: time difference
Sudbury 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 21:18 9:18 PM Sudbury 00:18 12:18 AM You –:–
21:18 9:18 PM
Pacific Daylight Time · UTC-7
☀️ 07:27 · 🌙 18:25
00:18 12:18 AM
Eastern Daylight Time · UTC-4
☀️ 07:40 · 🌙 18:41
·
+3 h
Sudbury is 3 h ahead of Seattle, WA.
When you, Seattle, WA and Sudbury 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
🇨🇦 Sudbury
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
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Time zones side by side
| Detail | 🇺🇸 Seattle, WA | 🇨🇦 Sudbury |
|---|---|---|
| Local time | 21:18 | 00:18 |
| Local date | Wednesday, October 14, 2026 | Thursday, October 15, 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 | 07:27 | 07:40 |
| Sunset | 18:25 | 18:41 |
| Daylight | 10 h 57 min | 11 h |
| People on this clock | 737,015 | 161,531 |
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 Sudbury: common questions
What is the time difference between Seattle, WA, and Sudbury?
Sudbury is 3 hours ahead: it uses UTC−4, while Seattle is on UTC−7.
What time is it in Sudbury at the start of the working day in Seattle, WA?
The working day in Seattle starts at 9:00 AM; in Sudbury it is 12:00 PM at that moment.
What time is it in Sudbury when it is 6:00 PM in Seattle, WA?
When it is 6:00 PM in Seattle, it is 9:00 PM in Sudbury.
When do working hours in Seattle, WA, and in Sudbury overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 3:00 PM in Seattle, which is 12:00 PM to 6:00 PM in Sudbury.
When does the date change in Sudbury compared with Seattle, WA?
The new day starts in Sudbury earlier: at 9:00 PM in Seattle it is already midnight there. Until 3:00 AM in Sudbury, Seattle is still on the previous day.
Does the time difference between Seattle, WA, and Sudbury change?
No. The clocks in Seattle and in Sudbury change on the same dates, so the difference stays 3 hours.
