Perth to Buenos Aires: time difference
Buenos Aires is 4 h behind Perth. Live clocks for both, the working hours they share, and how each one sits against your own time.
−4 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Perth 06:47 6:47 AM Buenos Aires 02:47 2:47 AM You –:–
06:47 6:47 AM
British Summer Time · UTC+1
☀️ 07:52 · 🌙 18:07
02:47 2:47 AM
Argentina Standard Time · UTC-3
☀️ 06:09 · 🌙 19:11
·
−4 h
Buenos Aires is 4 h behind Perth.
When you, Perth 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
🇬🇧 Perth
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
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 19 7 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇬🇧 Perth | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 06:47 | 02:47 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | British Summer Time | Argentina Standard Time |
| UTC offset | UTC+1 | UTC-3 |
| Offset from Perth | — | −4 h |
| IANA zone | Europe/London | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:52 | 06:09 |
| Sunset | 18:07 | 19:11 |
| Daylight | 10 h 15 min | 13 h 2 min |
| People on this clock | 46,660 | 2,891,082 |
Compare Perth with another city
More comparisons with Perth: the time zones next to it and the far side of the clock.
Big time differences
Perth and Buenos Aires: common questions
How many hours behind Perth is Buenos Aires?
The clocks in Buenos Aires are 4 hours behind those in Perth (UTC−3 and UTC+1).
If it is 9:00 AM in Perth, what time is it in Buenos Aires?
At 9:00 AM in Perth, clocks in Buenos Aires show 5:00 AM.
What time is it in Buenos Aires at the end of the working day in Perth?
The working day in Perth ends at 6:00 PM; in Buenos Aires it is 2:00 PM at that moment.
When do working hours in Perth and in Buenos Aires overlap?
Working hours (9:00 AM–6:00 PM) overlap from 1:00 PM to 6:00 PM in Perth, which is 9:00 AM to 2:00 PM in Buenos Aires.
Until what time in Perth is it still yesterday in Buenos Aires?
Before 4:00 AM in Perth, the date in Buenos Aires has not changed yet. From 8:00 PM in Buenos Aires, it is already the next day in Perth.
Does the time gap between Perth and Buenos Aires change during the year?
Yes – daylight saving time is used in Perth but not in Buenos Aires. From October 25, 2026, Buenos Aires will be 3 hours behind Perth.
