Riverside, CA to Lisbon: time difference
Lisbon is 8 h ahead of Riverside, CA. 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.
Riverside, CA 20:09 8:09 PM Lisbon 04:09 4:09 AM You –:–
20:09 8:09 PM
Pacific Daylight Time · UTC-7
☀️ 06:50 · 🌙 18:24
04:09 4:09 AM
Western European Summer Time · UTC+1
☀️ 07:41 · 🌙 19:07
·
+8 h
Lisbon is 8 h ahead of Riverside, CA.
When you, Riverside, CA 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
🇺🇸 Riverside, CA
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
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Riverside, CA | 🇵🇹 Lisbon |
|---|---|---|
| Local time | 20:09 | 04:09 |
| Local date | Friday, October 9, 2026 | Saturday, October 10, 2026 |
| Time zone | Pacific Daylight Time | Western European Summer Time |
| UTC offset | UTC-7 | UTC+1 |
| Offset from Riverside, CA | — | +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 | 06:50 | 07:41 |
| Sunset | 18:24 | 19:07 |
| Daylight | 11 h 34 min | 11 h 26 min |
| People on this clock | 320,000 | 545,923 |
Compare Riverside, CA with another city
More comparisons with Riverside, CA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Riverside, CA and Lisbon: common questions
What is the time difference between Riverside, CA, and Lisbon?
Lisbon is 8 hours ahead: it uses UTC+1, while Riverside is on UTC−7.
If it is 9:00 AM in Riverside, CA, what time is it in Lisbon?
At 9:00 AM in Riverside, clocks in Lisbon show 5:00 PM.
If it is 6:00 PM in Riverside, CA, what time is it in Lisbon?
At 6:00 PM in Riverside, clocks in Lisbon show 2:00 AM (the next day).
Is there a time when both Riverside, CA, and Lisbon are at work?
Yes: from 9:00 AM to 10:00 AM in Riverside (5:00 PM to 6:00 PM in Lisbon), the working days (9:00 AM–6:00 PM) overlap.
When is it already the next day in Lisbon?
From 4:00 PM in Riverside, CA, 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 Riverside.
Does the time gap between Riverside, CA, and Lisbon change during the year?
Yes, because the clocks in Riverside and in Lisbon change on different dates. Next change: from October 25, 2026, Lisbon will be 7 hours ahead of Riverside.
