San Jose to Petaluma, CA: time difference
Petaluma, CA is 1 h behind San Jose. 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.
San Jose 19:11 7:11 PM Petaluma, CA 18:11 6:11 PM You –:–
19:11 7:11 PM
Central Standard Time · UTC-6
☀️ 05:25 · 🌙 17:22
18:11 6:11 PM
Pacific Daylight Time · UTC-7
☀️ 07:16 · 🌙 18:40
·
−1 h
Petaluma, CA is 1 h behind San Jose.
When you, San Jose and Petaluma, 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
🇨🇷 San Jose
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
🇺🇸 Petaluma, CA
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 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
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Time zones side by side
| Detail | 🇨🇷 San Jose | 🇺🇸 Petaluma, CA |
|---|---|---|
| Local time | 19:11 | 18:11 |
| Local date | Sunday, October 11, 2026 | Sunday, October 11, 2026 |
| Time zone | Central Standard Time | Pacific Daylight Time |
| UTC offset | UTC-6 | UTC-7 |
| Offset from San Jose | — | −1 h |
| IANA zone | America/Costa Rica | America/Los Angeles |
| Daylight saving | Not observed | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 05:25 | 07:16 |
| Sunset | 17:22 | 18:40 |
| Daylight | 11 h 57 min | 11 h 24 min |
| People on this clock | 342,188 | 60,438 |
Compare San Jose with another city
More comparisons with San Jose: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
San Jose and Petaluma, CA: common questions
How far behind San Jose is Petaluma, CA?
Petaluma is 1 hour behind San Jose: UTC−7 against UTC−6.
What time is it in Petaluma, CA, at the start of the working day in San Jose?
The working day in San Jose starts at 9:00 AM; in Petaluma it is 8:00 AM at that moment.
What time is it in Petaluma, CA, when it is 6:00 PM in San Jose?
When it is 6:00 PM in San Jose, it is 5:00 PM in Petaluma.
Is there a time when both San Jose and Petaluma, CA, are at work?
Yes: from 10:00 AM to 6:00 PM in San Jose (9:00 AM to 5:00 PM in Petaluma), the working days (9:00 AM–6:00 PM) overlap.
Until what time in San Jose is it still yesterday in Petaluma, CA?
Before 1:00 AM in San Jose, the date in Petaluma has not changed yet. From 11:00 PM in Petaluma, it is already the next day in San Jose.
Is the time difference between San Jose and Petaluma, CA, the same all year?
No. Only Petaluma switches to summer time, so the gap changes twice a year. From November 1, 2026, Petaluma will be 2 hours behind San Jose.
