Sumy to Buenos Aires: time difference
Buenos Aires is 6 h behind Sumy. Live clocks for both, the working hours they share, and how each one sits against your own time.
−6 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Sumy 12:26 12:26 PM Buenos Aires 06:26 6:26 AM You –:–
12:26 12:26 PM
Eastern European Summer Time · UTC+3
☀️ 07:09 · 🌙 17:44
06:26 6:26 AM
Argentina Standard Time · UTC-3
☀️ 06:09 · 🌙 19:11
·
−6 h
Buenos Aires is 6 h behind Sumy.
When you, Sumy 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
🇺🇦 Sumy
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
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 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇦 Sumy | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 12:26 | 06:26 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Eastern European Summer Time | Argentina Standard Time |
| UTC offset | UTC+3 | UTC-3 |
| Offset from Sumy | — | −6 h |
| IANA zone | Europe/Kyiv | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC+2, Oct 25, 03:00 | Not observed |
| Sunrise | 07:09 | 06:09 |
| Sunset | 17:44 | 19:11 |
| Daylight | 10 h 36 min | 13 h 2 min |
| People on this clock | 267,633 | 2,891,082 |
Compare Sumy with another city
More comparisons with Sumy: the time zones next to it and the far side of the clock.
Big time differences
Sumy and Buenos Aires: common questions
What is the time difference between Sumy and Buenos Aires?
Buenos Aires is 6 hours behind: it uses UTC−3, while Sumy is on UTC+3.
What time is it in Buenos Aires at the start of the working day in Sumy?
The working day in Sumy starts at 9:00 AM; in Buenos Aires it is 3:00 AM at that moment.
If it is 6:00 PM in Sumy, what time is it in Buenos Aires?
At 6:00 PM in Sumy, clocks in Buenos Aires show 12:00 PM.
When do working hours in Sumy and in Buenos Aires overlap?
Working hours (9:00 AM–6:00 PM) overlap from 3:00 PM to 6:00 PM in Sumy, which is 9:00 AM to 12:00 PM in Buenos Aires.
When does the date change in Buenos Aires compared with Sumy?
The new day starts in Buenos Aires later: until 6:00 AM in Sumy, it is still the previous day there. From 6:00 PM in Buenos Aires, Sumy is already on the next day.
Does the time difference between Sumy and Buenos Aires change?
Yes. The clocks change only in Sumy. From October 25, 2026, Buenos Aires will be 5 hours behind Sumy.
