Tacna to Buenos Aires: time difference
Buenos Aires is 2 h ahead of Tacna. 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.
Tacna 11:31 11:31 AM Buenos Aires 13:31 1:31 PM You –:–
11:31 11:31 AM
Peru Standard Time · UTC-5
☀️ 05:11 · 🌙 17:43
13:31 1:31 PM
Argentina Standard Time · UTC-3
☀️ 06:10 · 🌙 19:10
·
+2 h
Buenos Aires is 2 h ahead of Tacna.
When you, Tacna 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
🇵🇪 Tacna
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
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇪 Tacna | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 11:31 | 13:31 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Peru Standard Time | Argentina Standard Time |
| UTC offset | UTC-5 | UTC-3 |
| Offset from Tacna | — | +2 h |
| IANA zone | America/Lima | America/Argentina/Buenos Aires |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:11 | 06:10 |
| Sunset | 17:43 | 19:10 |
| Daylight | 12 h 31 min | 13 h |
| People on this clock | 92,972 | 2,891,082 |
Compare Tacna with another city
More comparisons with Tacna: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Tacna and Buenos Aires: common questions
What is the time difference between Tacna and Buenos Aires?
Buenos Aires is 2 hours ahead: it uses UTC−3, while Tacna is on UTC−5.
What time is it in Buenos Aires at the start of the working day in Tacna?
The working day in Tacna starts at 9:00 AM; in Buenos Aires it is 11:00 AM at that moment.
If it is 6:00 PM in Tacna, what time is it in Buenos Aires?
At 6:00 PM in Tacna, clocks in Buenos Aires show 8:00 PM.
When do working hours in Tacna and in Buenos Aires overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 4:00 PM in Tacna, which is 11:00 AM to 6:00 PM in Buenos Aires.
From what time in Tacna is it tomorrow in Buenos Aires?
Once it is 10:00 PM in Tacna, the date in Buenos Aires has already changed. Until 2:00 AM in Buenos Aires, it is still the previous day in Tacna.
Does the time difference between Tacna and Buenos Aires change?
No. Neither place uses daylight saving time, so the difference stays 2 hours all year.
