St Thomas to Seattle, WA: time difference
Seattle, WA is 3 h behind St Thomas. 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.
St Thomas 10:47 10:47 AM Seattle, WA 07:47 7:47 AM You –:–
10:47 10:47 AM
Atlantic Standard Time · UTC-4
☀️ 06:15 · 🌙 17:57
07:47 7:47 AM
Pacific Daylight Time · UTC-7
☀️ 07:32 · 🌙 18:19
·
−3 h
Seattle, WA is 3 h behind St Thomas.
When you, St Thomas 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
🇻🇮 St Thomas
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
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Time zones side by side
| Detail | 🇻🇮 St Thomas | 🇺🇸 Seattle, WA |
|---|---|---|
| Local time | 10:47 | 07:47 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Atlantic Standard Time | Pacific Daylight Time |
| UTC offset | UTC-4 | UTC-7 |
| Offset from St Thomas | — | −3 h |
| IANA zone | America/St Thomas | America/Los Angeles |
| Daylight saving | Not observed | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 06:15 | 07:32 |
| Sunset | 17:57 | 18:19 |
| Daylight | 11 h 42 min | 10 h 47 min |
| People on this clock | 20,000 | 737,015 |
Compare St Thomas with another city
More comparisons with St Thomas: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
St Thomas and Seattle, WA: common questions
How many hours behind St Thomas is Seattle, WA?
The clocks in Seattle are 3 hours behind those in St Thomas (UTC−7 and UTC−4).
If it is 9:00 AM in St Thomas, what time is it in Seattle, WA?
At 9:00 AM in St Thomas, clocks in Seattle show 6:00 AM.
What time is it in Seattle, WA, when it is 6:00 PM in St Thomas?
When it is 6:00 PM in St Thomas, it is 3:00 PM in Seattle.
When do working hours in St Thomas and in Seattle, WA, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 12:00 PM to 6:00 PM in St Thomas, which is 9:00 AM to 3:00 PM in Seattle.
Until what time in St Thomas is it still yesterday in Seattle, WA?
Before 3:00 AM in St Thomas, the date in Seattle has not changed yet. From 9:00 PM in Seattle, it is already the next day in St Thomas.
Is the time difference between St Thomas and Seattle, WA, the same all year?
No. Only Seattle switches to summer time, so the gap changes twice a year. From November 1, 2026, Seattle will be 4 hours behind St Thomas.
