San Jose to Mammoth Lakes, CA: time difference
Mammoth Lakes, 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 18:17 6:17 PM Mammoth Lakes, CA 17:17 5:17 PM You –:–
18:17 6:17 PM
Central Standard Time · UTC-6
☀️ 05:26 · 🌙 17:18
17:17 5:17 PM
Pacific Daylight Time · UTC-7
☀️ 07:10 · 🌙 18:13
·
−1 h
Mammoth Lakes, CA is 1 h behind San Jose.
When you, San Jose and Mammoth Lakes, 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
🇺🇸 Mammoth Lakes, 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
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Time zones side by side
| Detail | 🇨🇷 San Jose | 🇺🇸 Mammoth Lakes, CA |
|---|---|---|
| Local time | 18:17 | 17:17 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 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 | 05:26 | 07:10 |
| Sunset | 17:18 | 18:13 |
| Daylight | 11 h 52 min | 11 h 4 min |
| People on this clock | 342,188 | 7,000 |
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 Mammoth Lakes, CA: common questions
How many hours behind San Jose is Mammoth Lakes, CA?
The clocks in Mammoth Lakes are 1 hour behind those in San Jose (UTC−7 and UTC−6).
If it is 9:00 AM in San Jose, what time is it in Mammoth Lakes, CA?
At 9:00 AM in San Jose, clocks in Mammoth Lakes show 8:00 AM.
What time is it in Mammoth Lakes, 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 Mammoth Lakes.
Is there a time when both San Jose and Mammoth Lakes, CA, are at work?
Yes: from 10:00 AM to 6:00 PM in San Jose (9:00 AM to 5:00 PM in Mammoth Lakes), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Mammoth Lakes, CA, compared with San Jose?
The new day starts in Mammoth Lakes later: until 1:00 AM in San Jose, it is still the previous day there. From 11:00 PM in Mammoth Lakes, San Jose is already on the next day.
Is the time difference between San Jose and Mammoth Lakes, CA, the same all year?
No. Only Mammoth Lakes switches to summer time, so the gap changes twice a year. From November 1, 2026, Mammoth Lakes will be 2 hours behind San Jose.
