Cambridge to Seattle, WA: time difference
Seattle, WA is 3 h behind Cambridge. 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.
Cambridge 18:12 6:12 PM Seattle, WA 15:12 3:12 PM You –:–
18:12 6:12 PM
Eastern Daylight Time · UTC-4
☀️ 07:40 · 🌙 18:33
15:12 3:12 PM
Pacific Daylight Time · UTC-7
☀️ 07:35 · 🌙 18:15
·
−3 h
Seattle, WA is 3 h behind Cambridge.
When you, Cambridge and Seattle, 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
🇨🇦 Cambridge
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
🇺🇸 Seattle, 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 | 🇨🇦 Cambridge | 🇺🇸 Seattle, WA |
|---|---|---|
| Local time | 18:12 | 15:12 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Eastern Daylight Time | Pacific Daylight Time |
| UTC offset | UTC-4 | UTC-7 |
| Offset from Cambridge | — | −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 | 07:40 | 07:35 |
| Sunset | 18:33 | 18:15 |
| Daylight | 10 h 53 min | 10 h 41 min |
| People on this clock | 138,479 | 737,015 |
Compare Cambridge with another city
More comparisons with Cambridge: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Cambridge and Seattle, WA: common questions
What is the time difference between Cambridge and Seattle, WA?
Seattle is 3 hours behind: it uses UTC−7, while Cambridge is on UTC−4.
What time is it in Seattle, WA, when it is 9:00 AM in Cambridge?
When it is 9:00 AM in Cambridge, it is 6:00 AM in Seattle.
If it is 6:00 PM in Cambridge, what time is it in Seattle, WA?
At 6:00 PM in Cambridge, clocks in Seattle show 3:00 PM.
Is there a time when both Cambridge and Seattle, WA, are at work?
Yes: from 12:00 PM to 6:00 PM in Cambridge (9:00 AM to 3:00 PM in Seattle), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Cambridge is it still yesterday in Seattle, WA?
Before 3:00 AM in Cambridge, the date in Seattle has not changed yet. From 9:00 PM in Seattle, it is already the next day in Cambridge.
Is the time difference between Cambridge and Seattle, WA, the same all year?
Yes. Both places switch to summer time and back on the same dates, so the gap remains 3 hours.
