Montevideo to Arecibo: time difference
Arecibo is 1 h behind Montevideo. 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.
Montevideo 21:21 9:21 PM Arecibo 20:21 8:21 PM You –:–
21:21 9:21 PM
Uruguay Standard Time · UTC-3
☀️ 06:01 · 🌙 19:01
20:21 8:21 PM
Atlantic Standard Time · UTC-4
☀️ 06:22 · 🌙 18:04
·
−1 h
Arecibo is 1 h behind Montevideo.
When you, Montevideo and Arecibo are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇾 Montevideo
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
🇵🇷 Arecibo
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 | 🇺🇾 Montevideo | 🇵🇷 Arecibo |
|---|---|---|
| Local time | 21:21 | 20:21 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Uruguay Standard Time | Atlantic Standard Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Montevideo | — | −1 h |
| IANA zone | America/Montevideo | America/Puerto Rico |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:01 | 06:22 |
| Sunset | 19:01 | 18:04 |
| Daylight | 13 h | 11 h 42 min |
| People on this clock | 1,319,108 | 39,634 |
Compare Montevideo with another city
More comparisons with Montevideo: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Montevideo and Arecibo: common questions
How many hours behind Montevideo is Arecibo?
The clocks in Arecibo are 1 hour behind those in Montevideo (UTC−4 and UTC−3).
What time is it in Arecibo when it is 9:00 AM in Montevideo?
When it is 9:00 AM in Montevideo, it is 8:00 AM in Arecibo.
What time is it in Arecibo when it is 6:00 PM in Montevideo?
When it is 6:00 PM in Montevideo, it is 5:00 PM in Arecibo.
Is there a time when both Montevideo and Arecibo are at work?
Yes: from 10:00 AM to 6:00 PM in Montevideo (9:00 AM to 5:00 PM in Arecibo), the working days (9:00 AM–6:00 PM) overlap.
When is it still the previous day in Arecibo?
Until 1:00 AM in Montevideo it is still the previous day in Arecibo. The other way round, from 11:00 PM in Arecibo it is already the next day in Montevideo.
Is the time difference between Montevideo and Arecibo the same all year?
Yes. Neither Montevideo nor Arecibo switches to summer time, so the gap is always 1 hour.
