Toa Alta to Seattle, WA: time difference
Seattle, WA is 3 h behind Toa Alta. 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.
Toa Alta 12:39 12:39 PM Seattle, WA 09:39 9:39 AM You –:–
12:39 12:39 PM
Atlantic Standard Time · UTC-4
☀️ 06:20 · 🌙 18:02
09:39 9:39 AM
Pacific Daylight Time · UTC-7
☀️ 07:32 · 🌙 18:19
·
−3 h
Seattle, WA is 3 h behind Toa Alta.
When you, Toa Alta 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
🇵🇷 Toa Alta
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
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Time zones side by side
| Detail | 🇵🇷 Toa Alta | 🇺🇸 Seattle, WA |
|---|---|---|
| Local time | 12:39 | 09:39 |
| 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 Toa Alta | — | −3 h |
| IANA zone | America/Puerto Rico | America/Los Angeles |
| Daylight saving | Not observed | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 06:20 | 07:32 |
| Sunset | 18:02 | 18:19 |
| Daylight | 11 h 42 min | 10 h 47 min |
| People on this clock | 74,000 | 737,015 |
Compare Toa Alta with another city
More comparisons with Toa Alta: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Toa Alta and Seattle, WA: common questions
How many hours behind Toa Alta is Seattle, WA?
The clocks in Seattle are 3 hours behind those in Toa Alta (UTC−7 and UTC−4).
If it is 9:00 AM in Toa Alta, what time is it in Seattle, WA?
At 9:00 AM in Toa Alta, clocks in Seattle show 6:00 AM.
If it is 6:00 PM in Toa Alta, what time is it in Seattle, WA?
At 6:00 PM in Toa Alta, clocks in Seattle show 3:00 PM.
Is there a time when both Toa Alta and Seattle, WA, are at work?
Yes: from 12:00 PM to 6:00 PM in Toa Alta (9:00 AM to 3:00 PM in Seattle), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Seattle, WA, compared with Toa Alta?
The new day starts in Seattle later: until 3:00 AM in Toa Alta, it is still the previous day there. From 9:00 PM in Seattle, Toa Alta is already on the next day.
Does the time gap between Toa Alta and Seattle, WA, change during the year?
Yes – daylight saving time is used in Seattle but not in Toa Alta. From November 1, 2026, Seattle will be 4 hours behind Toa Alta.
