Lisbon to San Ramon, CA: time difference
San Ramon, CA 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 07:49 7:49 AM San Ramon, CA 23:49 11:49 PM You –:–
07:49 7:49 AM
Western European Summer Time · UTC+1
☀️ 07:53 · 🌙 18:50
23:49 11:49 PM
Pacific Daylight Time · UTC-7
☀️ 07:23 · 🌙 18:24
·
−8 h
San Ramon, CA is 8 h behind Lisbon.
When you, Lisbon and San Ramon, 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
🇺🇸 San Ramon, CA
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 | 🇺🇸 San Ramon, CA |
|---|---|---|
| Local time | 07:49 | 23:49 |
| Local date | Thursday, October 22, 2026 | Wednesday, October 21, 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 | 07:53 | 07:23 |
| Sunset | 18:50 | 18:24 |
| Daylight | 10 h 57 min | 11 h 1 min |
| People on this clock | 545,923 | 75,995 |
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 San Ramon, CA: common questions
How many hours behind Lisbon is San Ramon, CA?
The clocks in San Ramon 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 San Ramon, CA?
At 9:00 AM in Lisbon, clocks in San Ramon show 1:00 AM.
What time is it in San Ramon, CA, when it is 6:00 PM in Lisbon?
When it is 6:00 PM in Lisbon, it is 10:00 AM in San Ramon.
When do working hours in Lisbon and in San Ramon, CA, 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 San Ramon.
When is it still the previous day in San Ramon, CA?
Until 8:00 AM in Lisbon it is still the previous day in San Ramon. The other way round, from 4:00 PM in San Ramon it is already the next day in Lisbon.
Does the time difference between Lisbon and San Ramon, CA, change?
Yes. Both places change their clocks, but on different dates. From October 25, 2026, San Ramon will be 7 hours behind Lisbon.
