Piedras Negras to Buenos Aires: time difference
Buenos Aires is 2 h ahead of Piedras Negras. Live clocks for both, the working hours they share, and how each one sits against your own time.
+2 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Piedras Negras 22:40 10:40 PM Buenos Aires 00:40 12:40 AM You –:–
22:40 10:40 PM
Central Daylight Time · UTC-5
☀️ 07:45 · 🌙 19:10
00:40 12:40 AM
Argentina Standard Time · UTC-3
☀️ 06:09 · 🌙 19:11
·
+2 h
Buenos Aires is 2 h ahead of Piedras Negras.
When you, Piedras Negras and Buenos Aires are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇲🇽 Piedras Negras
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
🇦🇷 Buenos Aires
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 1 1 AM
📍 Your time
- Asleep
- Early
- Working hours
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- Both working
- Right now
Time zones side by side
| Detail | 🇲🇽 Piedras Negras | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 22:40 | 00:40 |
| Local date | Sunday, October 18, 2026 | Monday, October 19, 2026 |
| Time zone | Central Daylight Time | Argentina Standard Time |
| UTC offset | UTC-5 | UTC-3 |
| Offset from Piedras Negras | — | +2 h |
| IANA zone | America/Matamoros | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:45 | 06:09 |
| Sunset | 19:10 | 19:11 |
| Daylight | 11 h 25 min | 13 h 2 min |
| People on this clock | 173,959 | 2,891,082 |
Compare Piedras Negras with another city
More comparisons with Piedras Negras: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Piedras Negras and Buenos Aires: common questions
What is the time difference between Piedras Negras and Buenos Aires?
Buenos Aires is 2 hours ahead: it uses UTC−3, while Piedras Negras is on UTC−5.
What time is it in Buenos Aires when it is 9:00 AM in Piedras Negras?
When it is 9:00 AM in Piedras Negras, it is 11:00 AM in Buenos Aires.
If it is 6:00 PM in Piedras Negras, what time is it in Buenos Aires?
At 6:00 PM in Piedras Negras, clocks in Buenos Aires show 8:00 PM.
Is there a time when both Piedras Negras and Buenos Aires are at work?
Yes: from 9:00 AM to 4:00 PM in Piedras Negras (11:00 AM to 6:00 PM in Buenos Aires), the working days (9:00 AM–6:00 PM) overlap.
From what time in Piedras Negras is it tomorrow in Buenos Aires?
Once it is 10:00 PM in Piedras Negras, the date in Buenos Aires has already changed. Until 2:00 AM in Buenos Aires, it is still the previous day in Piedras Negras.
Does the time difference between Piedras Negras and Buenos Aires change?
Yes. The clocks change only in Piedras Negras. From November 1, 2026, Buenos Aires will be 3 hours ahead of Piedras Negras.
