Boa Vista to Montevideo: time difference
Montevideo is 1 h ahead of Boa Vista. 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.
Boa Vista 09:18 9:18 AM Montevideo 10:18 10:18 AM You –:–
09:18 9:18 AM
Amazon Standard Time · UTC-4
☀️ 05:47 · 🌙 17:50
10:18 10:18 AM
Uruguay Standard Time · UTC-3
☀️ 05:58 · 🌙 19:03
·
+1 h
Montevideo is 1 h ahead of Boa Vista.
When you, Boa Vista 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
🇧🇷 Boa Vista
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
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 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇷 Boa Vista | 🇺🇾 Montevideo |
|---|---|---|
| Local time | 09:18 | 10:18 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Amazon Standard Time | Uruguay Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Boa Vista | — | +1 h |
| IANA zone | America/Boa Vista | America/Montevideo |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:47 | 05:58 |
| Sunset | 17:50 | 19:03 |
| Daylight | 12 h 3 min | 13 h 5 min |
| People on this clock | 413,486 | 1,319,108 |
Compare Boa Vista with another city
More comparisons with Boa Vista: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Boa Vista and Montevideo: common questions
What is the time difference between Boa Vista and Montevideo?
Montevideo is 1 hour ahead: it uses UTC−3, while Boa Vista is on UTC−4.
What time is it in Montevideo at the start of the working day in Boa Vista?
The working day in Boa Vista starts at 9:00 AM; in Montevideo it is 10:00 AM at that moment.
If it is 6:00 PM in Boa Vista, what time is it in Montevideo?
At 6:00 PM in Boa Vista, clocks in Montevideo show 7:00 PM.
When is a good time to call Montevideo from Boa Vista?
Between 9:00 AM and 5:00 PM in Boa Vista – that is 10:00 AM to 6:00 PM in Montevideo – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Montevideo compared with Boa Vista?
The new day starts in Montevideo earlier: at 11:00 PM in Boa Vista it is already midnight there. Until 1:00 AM in Montevideo, Boa Vista is still on the previous day.
Does the time difference between Boa Vista and Montevideo change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
