San Mateo, CA to Lisbon: time difference
Lisbon is 8 h ahead of San Mateo, 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.
San Mateo, CA 07:58 7:58 AM Lisbon 15:58 3:58 PM You –:–
07:58 7:58 AM
Pacific Daylight Time · UTC-7
☀️ 07:21 · 🌙 18:29
15:58 3:58 PM
Western European Summer Time · UTC+1
☀️ 07:49 · 🌙 18:56
·
+8 h
Lisbon is 8 h ahead of San Mateo, CA.
When you, San Mateo, 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
🇺🇸 San Mateo, 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
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Time zones side by side
| Detail | 🇺🇸 San Mateo, CA | 🇵🇹 Lisbon |
|---|---|---|
| Local time | 07:58 | 15:58 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Pacific Daylight Time | Western European Summer Time |
| UTC offset | UTC-7 | UTC+1 |
| Offset from San Mateo, 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 | 07:21 | 07:49 |
| Sunset | 18:29 | 18:56 |
| Daylight | 11 h 8 min | 11 h 7 min |
| People on this clock | 103,536 | 545,923 |
Compare San Mateo, CA with another city
More comparisons with San Mateo, CA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
San Mateo, CA and Lisbon: common questions
How many hours ahead of San Mateo, CA, is Lisbon?
The clocks in Lisbon are 8 hours ahead of those in San Mateo (UTC+1 and UTC−7).
What time is it in Lisbon when it is 9:00 AM in San Mateo, CA?
When it is 9:00 AM in San Mateo, it is 5:00 PM in Lisbon.
What time is it in Lisbon when it is 6:00 PM in San Mateo, CA?
When it is 6:00 PM in San Mateo, it is 2:00 AM (the next day) in Lisbon.
When is a good time to call Lisbon from San Mateo, CA?
Between 9:00 AM and 10:00 AM in San Mateo – that is 5:00 PM to 6:00 PM in Lisbon – both places are within working hours (9:00 AM–6:00 PM).
From what time in San Mateo, CA, is it tomorrow in Lisbon?
Once it is 4:00 PM in San Mateo, the date in Lisbon has already changed. Until 8:00 AM in Lisbon, it is still the previous day in San Mateo.
Does the time gap between San Mateo, CA, and Lisbon change during the year?
Yes, because the clocks in San Mateo and in Lisbon change on different dates. Next change: from October 25, 2026, Lisbon will be 7 hours ahead of San Mateo.
