Montreal to SeaTac, WA: time difference
SeaTac, WA is 3 h behind Montreal. 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.
Montreal 00:21 12:21 AM SeaTac, WA 21:21 9:21 PM You –:–
00:21 12:21 AM
Eastern Daylight Time · UTC-4
☀️ 07:14 · 🌙 18:07
21:21 9:21 PM
Pacific Daylight Time · UTC-7
☀️ 07:31 · 🌙 18:19
·
−3 h
SeaTac, WA is 3 h behind Montreal.
When you, Montreal and SeaTac, WA are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇨🇦 Montreal
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
🇺🇸 SeaTac, WA
21 9 PM 22 10 PM 23 11 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇨🇦 Montreal | 🇺🇸 SeaTac, WA |
|---|---|---|
| Local time | 00:21 | 21:21 |
| Local date | Sunday, October 18, 2026 | Saturday, October 17, 2026 |
| Time zone | Eastern Daylight Time | Pacific Daylight Time |
| UTC offset | UTC-4 | UTC-7 |
| Offset from Montreal | — | −3 h |
| IANA zone | America/Toronto | America/Los Angeles |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 07:14 | 07:31 |
| Sunset | 18:07 | 18:19 |
| Daylight | 10 h 53 min | 10 h 48 min |
| People on this clock | 1,762,949 | 31,454 |
Compare Montreal with another city
More comparisons with Montreal: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Montreal and SeaTac, WA: common questions
How far behind Montreal is SeaTac, WA?
SeaTac is 3 hours behind Montreal: UTC−7 against UTC−4.
What time is it in SeaTac, WA, at the start of the working day in Montreal?
The working day in Montreal starts at 9:00 AM; in SeaTac it is 6:00 AM at that moment.
If it is 6:00 PM in Montreal, what time is it in SeaTac, WA?
At 6:00 PM in Montreal, clocks in SeaTac show 3:00 PM.
When do working hours in Montreal and in SeaTac, WA, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 12:00 PM to 6:00 PM in Montreal, which is 9:00 AM to 3:00 PM in SeaTac.
When does the date change in SeaTac, WA, compared with Montreal?
The new day starts in SeaTac later: until 3:00 AM in Montreal, it is still the previous day there. From 9:00 PM in SeaTac, Montreal is already on the next day.
Is the time difference between Montreal and SeaTac, WA, the same all year?
Yes. Both places switch to summer time and back on the same dates, so the gap remains 3 hours.
