Lisbon to SeaTac, WA: time difference
SeaTac, WA is 8 h behind Lisbon. 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.
Lisbon 22:49 10:49 PM SeaTac, WA 14:49 2:49 PM You –:–
22:49 10:49 PM
Western European Summer Time · UTC+1
☀️ 07:48 · 🌙 18:57
14:49 2:49 PM
Pacific Daylight Time · UTC-7
☀️ 07:31 · 🌙 18:19
·
−8 h
SeaTac, WA is 8 h behind Lisbon.
When you, Lisbon and SeaTac, 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
🇵🇹 Lisbon
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
🇺🇸 SeaTac, WA
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 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇹 Lisbon | 🇺🇸 SeaTac, WA |
|---|---|---|
| Local time | 22:49 | 14:49 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Western European Summer Time | Pacific Daylight Time |
| UTC offset | UTC+1 | UTC-7 |
| Offset from Lisbon | — | −8 h |
| IANA zone | Europe/Lisbon | America/Los Angeles |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 07:48 | 07:31 |
| Sunset | 18:57 | 18:19 |
| Daylight | 11 h 9 min | 10 h 48 min |
| People on this clock | 545,923 | 31,454 |
Compare Lisbon with another city
More comparisons with Lisbon: the time zones next to it and the far side of the clock.
Big time differences
Lisbon and SeaTac, WA: common questions
How many hours behind Lisbon is SeaTac, WA?
The clocks in SeaTac are 8 hours behind those in Lisbon (UTC−7 and UTC+1).
If it is 9:00 AM in Lisbon, what time is it in SeaTac, WA?
At 9:00 AM in Lisbon, clocks in SeaTac show 1:00 AM.
What time is it in SeaTac, WA, at the end of the working day in Lisbon?
The working day in Lisbon ends at 6:00 PM; in SeaTac it is 10:00 AM at that moment.
When do working hours in Lisbon and in SeaTac, WA, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 5:00 PM to 6:00 PM in Lisbon, which is 9:00 AM to 10:00 AM in SeaTac.
Until what time in Lisbon is it still yesterday in SeaTac, WA?
Before 8:00 AM in Lisbon, the date in SeaTac has not changed yet. From 4:00 PM in SeaTac, it is already the next day in Lisbon.
Is the time difference between Lisbon and SeaTac, WA, the same all year?
No. Both places use summer time, but they switch on different dates, so for a while the gap changes. From October 25, 2026, SeaTac will be 7 hours behind Lisbon.
