Las Piedras to Seattle, WA: time difference
Seattle, WA is 3 h behind Las Piedras. 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.
Las Piedras 15:10 3:10 PM Seattle, WA 12:10 12:10 PM You –:–
15:10 3:10 PM
Atlantic Standard Time · UTC-4
☀️ 06:18 · 🌙 18:01
12:10 12:10 PM
Pacific Daylight Time · UTC-7
☀️ 07:32 · 🌙 18:19
·
−3 h
Seattle, WA is 3 h behind Las Piedras.
When you, Las Piedras 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
🇵🇷 Las Piedras
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 | 🇵🇷 Las Piedras | 🇺🇸 Seattle, WA |
|---|---|---|
| Local time | 15:10 | 12:10 |
| 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 Las Piedras | — | −3 h |
| IANA zone | America/Puerto Rico | America/Los Angeles |
| Daylight saving | Not observed | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 06:18 | 07:32 |
| Sunset | 18:01 | 18:19 |
| Daylight | 11 h 43 min | 10 h 47 min |
| People on this clock | 38,000 | 737,015 |
Compare Las Piedras with another city
More comparisons with Las Piedras: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Las Piedras and Seattle, WA: common questions
How many hours behind Las Piedras is Seattle, WA?
The clocks in Seattle are 3 hours behind those in Las Piedras (UTC−7 and UTC−4).
If it is 9:00 AM in Las Piedras, what time is it in Seattle, WA?
At 9:00 AM in Las Piedras, clocks in Seattle show 6:00 AM.
What time is it in Seattle, WA, when it is 6:00 PM in Las Piedras?
When it is 6:00 PM in Las Piedras, it is 3:00 PM in Seattle.
When do working hours in Las Piedras and in Seattle, WA, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 12:00 PM to 6:00 PM in Las Piedras, which is 9:00 AM to 3:00 PM in Seattle.
When does the date change in Seattle, WA, compared with Las Piedras?
The new day starts in Seattle later: until 3:00 AM in Las Piedras, it is still the previous day there. From 9:00 PM in Seattle, Las Piedras is already on the next day.
Is the time difference between Las Piedras 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 Las Piedras.
