SeaTac, WA to Lisbon: time difference
Lisbon is 8 h ahead of SeaTac, WA. Live clocks for both, the working hours they share, and how each one sits against your own time.
+8 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
SeaTac, WA 17:05 5:05 PM Lisbon 01:05 1:05 AM You –:–
17:05 5:05 PM
Pacific Daylight Time · UTC-7
☀️ 07:31 · 🌙 18:19
01:05 1:05 AM
Western European Summer Time · UTC+1
☀️ 07:48 · 🌙 18:57
·
+8 h
Lisbon is 8 h ahead of SeaTac, WA.
When you, SeaTac, WA and Lisbon are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 SeaTac, 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
🇵🇹 Lisbon
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 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM
📍 Your time
- Asleep
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Time zones side by side
| Detail | 🇺🇸 SeaTac, WA | 🇵🇹 Lisbon |
|---|---|---|
| Local time | 17:05 | 01:05 |
| Local date | Saturday, October 17, 2026 | Sunday, October 18, 2026 |
| Time zone | Pacific Daylight Time | Western European Summer Time |
| UTC offset | UTC-7 | UTC+1 |
| Offset from SeaTac, WA | — | +8 h |
| IANA zone | America/Los Angeles | Europe/Lisbon |
| Daylight saving | On summer time → UTC-8, Nov 1, 01:00 | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 07:31 | 07:48 |
| Sunset | 18:19 | 18:57 |
| Daylight | 10 h 48 min | 11 h 9 min |
| People on this clock | 31,454 | 545,923 |
Compare SeaTac, WA with another city
More comparisons with SeaTac, WA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
SeaTac, WA and Lisbon: common questions
How many hours ahead of SeaTac, WA, is Lisbon?
The clocks in Lisbon are 8 hours ahead of those in SeaTac (UTC+1 and UTC−7).
What time is it in Lisbon at the start of the working day in SeaTac, WA?
The working day in SeaTac starts at 9:00 AM; in Lisbon it is 5:00 PM at that moment.
What time is it in Lisbon when it is 6:00 PM in SeaTac, WA?
When it is 6:00 PM in SeaTac, it is 2:00 AM (the next day) in Lisbon.
When is a good time to call Lisbon from SeaTac, WA?
Between 9:00 AM and 10:00 AM in SeaTac – that is 5:00 PM to 6:00 PM in Lisbon – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Lisbon?
From 4:00 PM in SeaTac, WA, it is already the next day in Lisbon. The other way round, until 8:00 AM in Lisbon it is still the previous day in SeaTac.
Does the time difference between SeaTac, WA, and Lisbon change?
Yes. Both places change their clocks, but on different dates. From October 25, 2026, Lisbon will be 7 hours ahead of SeaTac.
