Lisbon to Eureka, CA: time difference
Eureka, CA is 7 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 17:33 5:33 PM Eureka, CA 10:33 10:33 AM You –:–
17:33 5:33 PM
Western European Standard Time · UTC+0
☀️ 06:59 · 🌙 17:43
10:33 10:33 AM
Pacific Daylight Time · UTC-7
☀️ 07:43 · 🌙 18:19
·
−7 h
Eureka, CA is 7 h behind Lisbon.
When you, Lisbon and Eureka, CA 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
🇺🇸 Eureka, CA
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 16 4 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇹 Lisbon | 🇺🇸 Eureka, CA |
|---|---|---|
| Local time | 17:33 | 10:33 |
| Local date | Wednesday, October 28, 2026 | Wednesday, October 28, 2026 |
| Time zone | Western European Standard Time | Pacific Daylight Time |
| UTC offset | UTC+0 | UTC-7 |
| Offset from Lisbon | — | −7 h |
| IANA zone | Europe/Lisbon | America/Los Angeles |
| Daylight saving | On standard time → UTC+1, Mar 28, 02:00 | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 06:59 | 07:43 |
| Sunset | 17:43 | 18:19 |
| Daylight | 10 h 43 min | 10 h 36 min |
| People on this clock | 545,923 | 27,191 |
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 Eureka, CA: common questions
How many hours behind Lisbon is Eureka, CA?
The clocks in Eureka are 7 hours behind those in Lisbon (UTC−7 and UTC+0).
What time is it in Eureka, CA, when it is 9:00 AM in Lisbon?
When it is 9:00 AM in Lisbon, it is 2:00 AM in Eureka.
What time is it in Eureka, CA, when it is 6:00 PM in Lisbon?
When it is 6:00 PM in Lisbon, it is 11:00 AM in Eureka.
Is there a time when both Lisbon and Eureka, CA, are at work?
Yes: from 4:00 PM to 6:00 PM in Lisbon (9:00 AM to 11:00 AM in Eureka), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Eureka, CA, compared with Lisbon?
The new day starts in Eureka later: until 7:00 AM in Lisbon, it is still the previous day there. From 5:00 PM in Eureka, Lisbon is already on the next day.
Does the time difference between Lisbon and Eureka, CA, change?
Yes. Both places change their clocks, but on different dates. From November 1, 2026, Eureka will be 8 hours behind Lisbon.
