Helena, MT to Montevideo: time difference
Montevideo is 3 h ahead of Helena, 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.
Helena, MT 21:25 9:25 PM Montevideo 00:25 12:25 AM You –:–
21:25 9:25 PM
Mountain Daylight Time · UTC-6
☀️ 07:38 · 🌙 18:54
00:25 12:25 AM
Uruguay Standard Time · UTC-3
☀️ 06:11 · 🌙 18:54
·
+3 h
Montevideo is 3 h ahead of Helena, MT.
When you, Helena, 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
🇺🇸 Helena, 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
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Helena, MT | 🇺🇾 Montevideo |
|---|---|---|
| Local time | 21:25 | 00:25 |
| Local date | Friday, October 9, 2026 | Saturday, October 10, 2026 |
| Time zone | Mountain Daylight Time | Uruguay Standard Time |
| UTC offset | UTC-6 | UTC-3 |
| Offset from Helena, MT | — | +3 h |
| IANA zone | America/Denver | America/Montevideo |
| Daylight saving | On summer time → UTC-7, Nov 1, 01:00 | Not observed |
| Sunrise | 07:38 | 06:11 |
| Sunset | 18:54 | 18:54 |
| Daylight | 11 h 16 min | 12 h 43 min |
| People on this clock | 32,091 | 1,319,108 |
Compare Helena, MT with another city
More comparisons with Helena, MT: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Helena, MT and Montevideo: common questions
What is the time difference between Helena, MT, and Montevideo?
Montevideo is 3 hours ahead: it uses UTC−3, while Helena is on UTC−6.
What time is it in Montevideo when it is 9:00 AM in Helena, MT?
When it is 9:00 AM in Helena, it is 12:00 PM in Montevideo.
What time is it in Montevideo when it is 6:00 PM in Helena, MT?
When it is 6:00 PM in Helena, it is 9:00 PM in Montevideo.
Is there a time when both Helena, MT, and Montevideo are at work?
Yes: from 9:00 AM to 3:00 PM in Helena (12:00 PM to 6:00 PM in Montevideo), the working days (9:00 AM–6:00 PM) overlap.
From what time in Helena, MT, is it tomorrow in Montevideo?
Once it is 9:00 PM in Helena, the date in Montevideo has already changed. Until 3:00 AM in Montevideo, it is still the previous day in Helena.
Is the time difference between Helena, MT, and Montevideo the same all year?
No. Only Helena switches to summer time, so the gap changes twice a year. From November 1, 2026, Montevideo will be 4 hours ahead of Helena.
