Postojna to Buenos Aires: time difference
Buenos Aires is 5 h behind Postojna. Live clocks for both, the working hours they share, and how each one sits against your own time.
−5 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Postojna 04:17 4:17 AM Buenos Aires 23:17 11:17 PM You –:–
04:17 4:17 AM
Central European Summer Time · UTC+2
☀️ 07:13 · 🌙 18:29
23:17 11:17 PM
Argentina Standard Time · UTC-3
☀️ 06:20 · 🌙 19:03
·
−5 h
Buenos Aires is 5 h behind Postojna.
When you, Postojna 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
🇸🇮 Postojna
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
19 7 PM 20 8 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇸🇮 Postojna | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 04:17 | 23:17 |
| Local date | Saturday, October 10, 2026 | Friday, October 9, 2026 |
| Time zone | Central European Summer Time | Argentina Standard Time |
| UTC offset | UTC+2 | UTC-3 |
| Offset from Postojna | — | −5 h |
| IANA zone | Europe/Ljubljana | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC+1, Oct 25, 02:00 | Not observed |
| Sunrise | 07:13 | 06:20 |
| Sunset | 18:29 | 19:03 |
| Daylight | 11 h 15 min | 12 h 43 min |
| People on this clock | 9,600 | 2,891,082 |
Compare Postojna with another city
More comparisons with Postojna: the time zones next to it and the far side of the clock.
Big time differences
Postojna and Buenos Aires: common questions
What is the time difference between Postojna and Buenos Aires?
Buenos Aires is 5 hours behind: it uses UTC−3, while Postojna is on UTC+2.
If it is 9:00 AM in Postojna, what time is it in Buenos Aires?
At 9:00 AM in Postojna, clocks in Buenos Aires show 4:00 AM.
If it is 6:00 PM in Postojna, what time is it in Buenos Aires?
At 6:00 PM in Postojna, clocks in Buenos Aires show 1:00 PM.
Is there a time when both Postojna and Buenos Aires are at work?
Yes: from 2:00 PM to 6:00 PM in Postojna (9:00 AM to 1:00 PM in Buenos Aires), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Buenos Aires compared with Postojna?
The new day starts in Buenos Aires later: until 5:00 AM in Postojna, it is still the previous day there. From 7:00 PM in Buenos Aires, Postojna is already on the next day.
Does the time gap between Postojna and Buenos Aires change during the year?
Yes – daylight saving time is used in Postojna but not in Buenos Aires. From October 25, 2026, Buenos Aires will be 4 hours behind Postojna.
