Petaluma, CA to San Jose: time difference
San Jose is 1 h ahead of Petaluma, CA. 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.
Petaluma, CA 17:24 5:24 PM San Jose 18:24 6:24 PM You –:–
17:24 5:24 PM
Pacific Daylight Time · UTC-7
☀️ 07:16 · 🌙 18:40
18:24 6:24 PM
Central Standard Time · UTC-6
☀️ 05:25 · 🌙 17:22
·
+1 h
San Jose is 1 h ahead of Petaluma, CA.
When you, Petaluma, CA and San Jose are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Petaluma, 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
🇨🇷 San Jose
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 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
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Time zones side by side
| Detail | 🇺🇸 Petaluma, CA | 🇨🇷 San Jose |
|---|---|---|
| Local time | 17:24 | 18:24 |
| Local date | Sunday, October 11, 2026 | Sunday, October 11, 2026 |
| Time zone | Pacific Daylight Time | Central Standard Time |
| UTC offset | UTC-7 | UTC-6 |
| Offset from Petaluma, CA | — | +1 h |
| IANA zone | America/Los Angeles | America/Costa Rica |
| Daylight saving | On summer time → UTC-8, Nov 1, 01:00 | Not observed |
| Sunrise | 07:16 | 05:25 |
| Sunset | 18:40 | 17:22 |
| Daylight | 11 h 24 min | 11 h 57 min |
| People on this clock | 60,438 | 342,188 |
Compare Petaluma, CA with another city
More comparisons with Petaluma, CA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Petaluma, CA and San Jose: common questions
What is the time difference between Petaluma, CA, and San Jose?
San Jose is 1 hour ahead: it uses UTC−6, while Petaluma is on UTC−7.
If it is 9:00 AM in Petaluma, CA, what time is it in San Jose?
At 9:00 AM in Petaluma, clocks in San Jose show 10:00 AM.
If it is 6:00 PM in Petaluma, CA, what time is it in San Jose?
At 6:00 PM in Petaluma, clocks in San Jose show 7:00 PM.
When is a good time to call San Jose from Petaluma, CA?
Between 9:00 AM and 5:00 PM in Petaluma – that is 10:00 AM to 6:00 PM in San Jose – both places are within working hours (9:00 AM–6:00 PM).
From what time in Petaluma, CA, is it tomorrow in San Jose?
Once it is 11:00 PM in Petaluma, the date in San Jose has already changed. Until 1:00 AM in San Jose, it is still the previous day in Petaluma.
Does the time gap between Petaluma, CA, and San Jose change during the year?
Yes – daylight saving time is used in Petaluma but not in San Jose. From November 1, 2026, San Jose will be 2 hours ahead of Petaluma.
