Great Falls, MT to Montevideo: time difference
Montevideo is 3 h ahead of Great Falls, MT. 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.
Great Falls, MT 21:11 9:11 PM Montevideo 00:11 12:11 AM You –:–
21:11 9:11 PM
Mountain Daylight Time · UTC-6
☀️ 07:37 · 🌙 18:48
00:11 12:11 AM
Uruguay Standard Time · UTC-3
☀️ 06:10 · 🌙 18:55
·
+3 h
Montevideo is 3 h ahead of Great Falls, MT.
When you, Great Falls, MT and Montevideo are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Great Falls, MT
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
🇺🇾 Montevideo
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 1 1 AM 2 2 AM
📍 Your time
- Asleep
- Early
- Working hours
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Time zones side by side
| Detail | 🇺🇸 Great Falls, MT | 🇺🇾 Montevideo |
|---|---|---|
| Local time | 21:11 | 00:11 |
| Local date | Saturday, October 10, 2026 | Sunday, October 11, 2026 |
| Time zone | Mountain Daylight Time | Uruguay Standard Time |
| UTC offset | UTC-6 | UTC-3 |
| Offset from Great Falls, MT | — | +3 h |
| IANA zone | America/Denver | America/Montevideo |
| Daylight saving | On summer time → UTC-7, Nov 1, 01:00 | Not observed |
| Sunrise | 07:37 | 06:10 |
| Sunset | 18:48 | 18:55 |
| Daylight | 11 h 11 min | 12 h 45 min |
| People on this clock | 60,442 | 1,319,108 |
Compare Great Falls, MT with another city
More comparisons with Great Falls, MT: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Great Falls, MT and Montevideo: common questions
How many hours ahead of Great Falls, MT, is Montevideo?
The clocks in Montevideo are 3 hours ahead of those in Great Falls (UTC−3 and UTC−6).
If it is 9:00 AM in Great Falls, MT, what time is it in Montevideo?
At 9:00 AM in Great Falls, clocks in Montevideo show 12:00 PM.
What time is it in Montevideo when it is 6:00 PM in Great Falls, MT?
When it is 6:00 PM in Great Falls, it is 9:00 PM in Montevideo.
Is there a time when both Great Falls, MT, and Montevideo are at work?
Yes: from 9:00 AM to 3:00 PM in Great Falls (12:00 PM to 6:00 PM in Montevideo), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Montevideo compared with Great Falls, MT?
The new day starts in Montevideo earlier: at 9:00 PM in Great Falls it is already midnight there. Until 3:00 AM in Montevideo, Great Falls is still on the previous day.
Does the time gap between Great Falls, MT, and Montevideo change during the year?
Yes – daylight saving time is used in Great Falls but not in Montevideo. From November 1, 2026, Montevideo will be 4 hours ahead of Great Falls.
