Guaynabo to Seattle, WA: time difference
Seattle, WA is 3 h behind Guaynabo. 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.
Guaynabo 15:26 3:26 PM Seattle, WA 12:26 12:26 PM You –:–
15:26 3:26 PM
Atlantic Standard Time · UTC-4
☀️ 06:19 · 🌙 18:02
12:26 12:26 PM
Pacific Daylight Time · UTC-7
☀️ 07:32 · 🌙 18:19
·
−3 h
Seattle, WA is 3 h behind Guaynabo.
When you, Guaynabo 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
🇵🇷 Guaynabo
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
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇷 Guaynabo | 🇺🇸 Seattle, WA |
|---|---|---|
| Local time | 15:26 | 12:26 |
| 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 Guaynabo | — | −3 h |
| IANA zone | America/Puerto Rico | America/Los Angeles |
| Daylight saving | Not observed | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 06:19 | 07:32 |
| Sunset | 18:02 | 18:19 |
| Daylight | 11 h 42 min | 10 h 47 min |
| People on this clock | 68,491 | 737,015 |
Compare Guaynabo with another city
More comparisons with Guaynabo: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Guaynabo and Seattle, WA: common questions
What is the time difference between Guaynabo and Seattle, WA?
Seattle is 3 hours behind: it uses UTC−7, while Guaynabo is on UTC−4.
What time is it in Seattle, WA, at the start of the working day in Guaynabo?
The working day in Guaynabo starts at 9:00 AM; in Seattle it is 6:00 AM at that moment.
What time is it in Seattle, WA, at the end of the working day in Guaynabo?
The working day in Guaynabo ends at 6:00 PM; in Seattle it is 3:00 PM at that moment.
When is a good time to call Seattle, WA, from Guaynabo?
Between 12:00 PM and 6:00 PM in Guaynabo – that is 9:00 AM to 3:00 PM in Seattle – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Seattle, WA, compared with Guaynabo?
The new day starts in Seattle later: until 3:00 AM in Guaynabo, it is still the previous day there. From 9:00 PM in Seattle, Guaynabo is already on the next day.
Does the time difference between Guaynabo and Seattle, WA, change?
Yes. The clocks change only in Seattle. From November 1, 2026, Seattle will be 4 hours behind Guaynabo.
