San Jose to Helena, MT: time difference
Helena, MT 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 01:17 1:17 AM Helena, MT 00:17 12:17 AM You –:–
01:17 1:17 AM
Central Standard Time · UTC-6
☀️ 05:29 · 🌙 17:13
00:17 12:17 AM
Mountain Standard Time · UTC-7
☀️ 07:17 · 🌙 17:09
·
−1 h
Helena, MT is 1 h behind San Jose.
When you, San Jose and Helena, MT 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
🇺🇸 Helena, MT
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
- Right now
Time zones side by side
| Detail | 🇨🇷 San Jose | 🇺🇸 Helena, MT |
|---|---|---|
| Local time | 01:17 | 00:17 |
| Local date | Friday, November 6, 2026 | Friday, November 6, 2026 |
| Time zone | Central Standard Time | Mountain Standard Time |
| UTC offset | UTC-6 | UTC-7 |
| Offset from San Jose | — | −1 h |
| IANA zone | America/Costa Rica | America/Denver |
| Daylight saving | Not observed | On standard time → UTC-6, Mar 14, 03:00 |
| Sunrise | 05:29 | 07:17 |
| Sunset | 17:13 | 17:09 |
| Daylight | 11 h 44 min | 9 h 52 min |
| People on this clock | 342,188 | 32,091 |
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 Helena, MT: common questions
How many hours behind San Jose is Helena, MT?
The clocks in Helena 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 Helena, MT?
At 9:00 AM in San Jose, clocks in Helena show 8:00 AM.
What time is it in Helena, MT, when it is 6:00 PM in San Jose?
When it is 6:00 PM in San Jose, it is 5:00 PM in Helena.
Is there a time when both San Jose and Helena, MT, are at work?
Yes: from 10:00 AM to 6:00 PM in San Jose (9:00 AM to 5:00 PM in Helena), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Helena, MT, compared with San Jose?
The new day starts in Helena later: until 1:00 AM in San Jose, it is still the previous day there. From 11:00 PM in Helena, San Jose is already on the next day.
Is the time difference between San Jose and Helena, MT, the same all year?
No. Only Helena switches to summer time, so the gap changes twice a year. From March 14, 2027, Helena and San Jose will have the same time.
