Seattle, WA to Alliston: time difference
Alliston 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 15:42 3:42 PM Alliston 18:42 6:42 PM You –:–
15:42 3:42 PM
Pacific Daylight Time · UTC-7
☀️ 07:27 · 🌙 18:25
18:42 6:42 PM
Eastern Daylight Time · UTC-4
☀️ 07:33 · 🌙 18:39
·
+3 h
Alliston is 3 h ahead of Seattle, WA.
When you, Seattle, WA and Alliston 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
🇨🇦 Alliston
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
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Time zones side by side
| Detail | 🇺🇸 Seattle, WA | 🇨🇦 Alliston |
|---|---|---|
| Local time | 15:42 | 18:42 |
| Local date | Wednesday, October 14, 2026 | Wednesday, October 14, 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 | 07:33 |
| Sunset | 18:25 | 18:39 |
| Daylight | 10 h 57 min | 11 h 5 min |
| People on this clock | 737,015 | — |
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 Alliston: common questions
How far ahead of Seattle, WA, is Alliston?
Alliston is 3 hours ahead of Seattle: UTC−4 against UTC−7.
What time is it in Alliston when it is 9:00 AM in Seattle, WA?
When it is 9:00 AM in Seattle, it is 12:00 PM in Alliston.
What time is it in Alliston at the end of the working day in Seattle, WA?
The working day in Seattle ends at 6:00 PM; in Alliston it is 9:00 PM at that moment.
When is a good time to call Alliston from Seattle, WA?
Between 9:00 AM and 3:00 PM in Seattle – that is 12:00 PM to 6:00 PM in Alliston – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Alliston?
From 9:00 PM in Seattle, WA, it is already the next day in Alliston. The other way round, until 3:00 AM in Alliston it is still the previous day in Seattle.
Does the time difference between Seattle, WA, and Alliston change?
No. The clocks in Seattle and in Alliston change on the same dates, so the difference stays 3 hours.
