Seattle, WA to Coamo: time difference
Coamo is 3 h ahead of Seattle, WA. 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.
Seattle, WA 17:23 5:23 PM Coamo 20:23 8:23 PM You –:–
17:23 5:23 PM
Pacific Daylight Time · UTC-7
☀️ 07:32 · 🌙 18:19
20:23 8:23 PM
Atlantic Standard Time · UTC-4
☀️ 06:20 · 🌙 18:03
·
+3 h
Coamo is 3 h ahead of Seattle, WA.
When you, Seattle, WA and Coamo are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Seattle, WA
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
🇵🇷 Coamo
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 0 12 AM 1 1 AM 2 2 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Seattle, WA | 🇵🇷 Coamo |
|---|---|---|
| Local time | 17:23 | 20:23 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Pacific Daylight Time | Atlantic Standard Time |
| UTC offset | UTC-7 | UTC-4 |
| Offset from Seattle, WA | — | +3 h |
| IANA zone | America/Los Angeles | America/Puerto Rico |
| Daylight saving | On summer time → UTC-8, Nov 1, 01:00 | Not observed |
| Sunrise | 07:32 | 06:20 |
| Sunset | 18:19 | 18:03 |
| Daylight | 10 h 47 min | 11 h 43 min |
| People on this clock | 737,015 | 40,000 |
Compare Seattle, WA with another city
More comparisons with Seattle, WA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Seattle, WA and Coamo: common questions
How many hours ahead of Seattle, WA, is Coamo?
The clocks in Coamo are 3 hours ahead of those in Seattle (UTC−4 and UTC−7).
If it is 9:00 AM in Seattle, WA, what time is it in Coamo?
At 9:00 AM in Seattle, clocks in Coamo show 12:00 PM.
What time is it in Coamo when it is 6:00 PM in Seattle, WA?
When it is 6:00 PM in Seattle, it is 9:00 PM in Coamo.
Is there a time when both Seattle, WA, and Coamo are at work?
Yes: from 9:00 AM to 3:00 PM in Seattle (12:00 PM to 6:00 PM in Coamo), the working days (9:00 AM–6:00 PM) overlap.
From what time in Seattle, WA, is it tomorrow in Coamo?
Once it is 9:00 PM in Seattle, the date in Coamo has already changed. Until 3:00 AM in Coamo, it is still the previous day in Seattle.
Does the time gap between Seattle, WA, and Coamo change during the year?
Yes – daylight saving time is used in Seattle but not in Coamo. From November 1, 2026, Coamo will be 4 hours ahead of Seattle.
