Buenos Aires to Sumba: time difference
Sumba is 4 h ahead of Buenos Aires. 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.
Buenos Aires 04:12 4:12 AM Sumba 08:12 8:12 AM You –:–
04:12 4:12 AM
Argentina Standard Time · UTC-3
☀️ 06:19 · 🌙 19:04
08:12 8:12 AM
Western European Summer Time · UTC+1
☀️ 07:56 · 🌙 18:33
·
+4 h
Sumba is 4 h ahead of Buenos Aires.
When you, Buenos Aires and Sumba 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
🇫🇴 Sumba
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 2 2 AM 3 3 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇦🇷 Buenos Aires | 🇫🇴 Sumba |
|---|---|---|
| Local time | 04:12 | 08:12 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Argentina Standard Time | Western European Summer Time |
| UTC offset | UTC-3 | UTC+1 |
| Offset from Buenos Aires | — | +4 h |
| IANA zone | America/Argentina/Buenos Aires | Atlantic/Faroe |
| Daylight saving | Not observed | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 06:19 | 07:56 |
| Sunset | 19:04 | 18:33 |
| Daylight | 12 h 45 min | 10 h 36 min |
| People on this clock | 2,891,082 | 300 |
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 Sumba: common questions
What is the time difference between Buenos Aires and Sumba?
Sumba is 4 hours ahead: it uses UTC+1, while Buenos Aires is on UTC−3.
If it is 9:00 AM in Buenos Aires, what time is it in Sumba?
At 9:00 AM in Buenos Aires, clocks in Sumba show 1:00 PM.
If it is 6:00 PM in Buenos Aires, what time is it in Sumba?
At 6:00 PM in Buenos Aires, clocks in Sumba show 10:00 PM.
Is there a time when both Buenos Aires and Sumba are at work?
Yes: from 9:00 AM to 2:00 PM in Buenos Aires (1:00 PM to 6:00 PM in Sumba), the working days (9:00 AM–6:00 PM) overlap.
When is it already the next day in Sumba?
From 8:00 PM in Buenos Aires it is already the next day in Sumba. The other way round, until 4:00 AM in Sumba it is still the previous day in Buenos Aires.
Is the time difference between Buenos Aires and Sumba the same all year?
No. Only Sumba switches to summer time, so the gap changes twice a year. From October 25, 2026, Sumba will be 3 hours ahead of Buenos Aires.
