Seattle, WA to Guaynabo: time difference
Guaynabo 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 13:21 1:21 PM Guaynabo 16:21 4:21 PM You –:–
13:21 1:21 PM
Pacific Daylight Time · UTC-7
☀️ 07:32 · 🌙 18:19
16:21 4:21 PM
Atlantic Standard Time · UTC-4
☀️ 06:19 · 🌙 18:02
·
+3 h
Guaynabo is 3 h ahead of Seattle, WA.
When you, Seattle, WA and Guaynabo 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
🇵🇷 Guaynabo
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
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Time zones side by side
| Detail | 🇺🇸 Seattle, WA | 🇵🇷 Guaynabo |
|---|---|---|
| Local time | 13:21 | 16:21 |
| 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 | 06:19 |
| Sunset | 18:19 | 18:02 |
| Daylight | 10 h 47 min | 11 h 42 min |
| People on this clock | 737,015 | 68,491 |
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 Guaynabo: common questions
How far ahead of Seattle, WA, is Guaynabo?
Guaynabo is 3 hours ahead of Seattle: UTC−4 against UTC−7.
What time is it in Guaynabo when it is 9:00 AM in Seattle, WA?
When it is 9:00 AM in Seattle, it is 12:00 PM in Guaynabo.
What time is it in Guaynabo at the end of the working day in Seattle, WA?
The working day in Seattle ends at 6:00 PM; in Guaynabo it is 9:00 PM at that moment.
When is a good time to call Guaynabo from Seattle, WA?
Between 9:00 AM and 3:00 PM in Seattle – that is 12:00 PM to 6:00 PM in Guaynabo – both places are within working hours (9:00 AM–6:00 PM).
From what time in Seattle, WA, is it tomorrow in Guaynabo?
Once it is 9:00 PM in Seattle, the date in Guaynabo has already changed. Until 3:00 AM in Guaynabo, it is still the previous day in Seattle.
Is the time difference between Seattle, WA, and Guaynabo the same all year?
No. Only Seattle switches to summer time, so the gap changes twice a year. From November 1, 2026, Guaynabo will be 4 hours ahead of Seattle.
