Buenos Aires to Monterrey: time difference
Monterrey is 3 h behind Buenos Aires. 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.
Buenos Aires 00:10 12:10 AM Monterrey 21:10 9:10 PM You –:–
00:10 12:10 AM
Argentina Standard Time · UTC-3
☀️ 06:20 · 🌙 19:03
21:10 9:10 PM
Central Standard Time · UTC-6
☀️ 06:38 · 🌙 18:21
·
−3 h
Monterrey is 3 h behind Buenos Aires.
When you, Buenos Aires and Monterrey are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇦🇷 Buenos Aires
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
🇲🇽 Monterrey
21 9 PM 22 10 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇦🇷 Buenos Aires | 🇲🇽 Monterrey |
|---|---|---|
| Local time | 00:10 | 21:10 |
| Local date | Saturday, October 10, 2026 | Friday, October 9, 2026 |
| Time zone | Argentina Standard Time | Central Standard Time |
| UTC offset | UTC-3 | UTC-6 |
| Offset from Buenos Aires | — | −3 h |
| IANA zone | America/Argentina/Buenos Aires | America/Monterrey |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:20 | 06:38 |
| Sunset | 19:03 | 18:21 |
| Daylight | 12 h 43 min | 11 h 43 min |
| People on this clock | 2,891,082 | 1,142,994 |
Compare Buenos Aires with another city
More comparisons with Buenos Aires: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Buenos Aires and Monterrey: common questions
How far behind Buenos Aires is Monterrey?
Monterrey is 3 hours behind Buenos Aires: UTC−6 against UTC−3.
What time is it in Monterrey at the start of the working day in Buenos Aires?
The working day in Buenos Aires starts at 9:00 AM; in Monterrey it is 6:00 AM at that moment.
What time is it in Monterrey at the end of the working day in Buenos Aires?
The working day in Buenos Aires ends at 6:00 PM; in Monterrey it is 3:00 PM at that moment.
When do working hours in Buenos Aires and in Monterrey overlap?
Working hours (9:00 AM–6:00 PM) overlap from 12:00 PM to 6:00 PM in Buenos Aires, which is 9:00 AM to 3:00 PM in Monterrey.
Until what time in Buenos Aires is it still yesterday in Monterrey?
Before 3:00 AM in Buenos Aires, the date in Monterrey has not changed yet. From 9:00 PM in Monterrey, it is already the next day in Buenos Aires.
Does the time difference between Buenos Aires and Monterrey change?
No. Neither place uses daylight saving time, so the difference stays 3 hours all year.
