San Jose to Great Falls, MT: time difference
Great Falls, 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 13:21 1:21 PM Great Falls, MT 12:21 12:21 PM You –:–
13:21 1:21 PM
Central Standard Time · UTC-6
☀️ 05:29 · 🌙 17:13
12:21 12:21 PM
Mountain Standard Time · UTC-7
☀️ 07:17 · 🌙 17:02
·
−1 h
Great Falls, MT is 1 h behind San Jose.
When you, San Jose and Great Falls, 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
🇺🇸 Great Falls, 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
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- Early
- Working hours
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Time zones side by side
| Detail | 🇨🇷 San Jose | 🇺🇸 Great Falls, MT |
|---|---|---|
| Local time | 13:21 | 12:21 |
| 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 | 17:02 |
| Daylight | 11 h 44 min | 9 h 45 min |
| People on this clock | 342,188 | 60,442 |
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 Great Falls, MT: common questions
What is the time difference between San Jose and Great Falls, MT?
Great Falls is 1 hour behind: it uses UTC−7, while San Jose is on UTC−6.
What time is it in Great Falls, MT, when it is 9:00 AM in San Jose?
When it is 9:00 AM in San Jose, it is 8:00 AM in Great Falls.
What time is it in Great Falls, MT, at the end of the working day in San Jose?
The working day in San Jose ends at 6:00 PM; in Great Falls it is 5:00 PM at that moment.
When do working hours in San Jose and in Great Falls, MT, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in San Jose, which is 9:00 AM to 5:00 PM in Great Falls.
When does the date change in Great Falls, MT, compared with San Jose?
The new day starts in Great Falls later: until 1:00 AM in San Jose, it is still the previous day there. From 11:00 PM in Great Falls, San Jose is already on the next day.
Does the time gap between San Jose and Great Falls, MT, change during the year?
Yes – daylight saving time is used in Great Falls but not in San Jose. From March 14, 2027, Great Falls and San Jose will have the same time.
