Kostroma to Buenos Aires: time difference
Buenos Aires is 6 h behind Kostroma. 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.
Kostroma 06:04 6:04 AM Buenos Aires 00:04 12:04 AM You –:–
06:04 6:04 AM
Moscow Standard Time · UTC+3
☀️ 06:57 · 🌙 17:07
00:04 12:04 AM
Argentina Standard Time · UTC-3
☀️ 06:10 · 🌙 19:10
·
−6 h
Buenos Aires is 6 h behind Kostroma.
When you, Kostroma 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
🇷🇺 Kostroma
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 | 🇷🇺 Kostroma | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 06:04 | 00:04 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Moscow Standard Time | Argentina Standard Time |
| UTC offset | UTC+3 | UTC-3 |
| Offset from Kostroma | — | −6 h |
| IANA zone | Europe/Moscow | America/Argentina/Buenos Aires |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:57 | 06:10 |
| Sunset | 17:07 | 19:10 |
| Daylight | 10 h 10 min | 13 h |
| People on this clock | 277,393 | 2,891,082 |
Compare Kostroma with another city
More comparisons with Kostroma: the time zones next to it and the far side of the clock.
Big time differences
Kostroma and Buenos Aires: common questions
How far behind Kostroma is Buenos Aires?
Buenos Aires is 6 hours behind Kostroma: UTC−3 against UTC+3.
What time is it in Buenos Aires when it is 9:00 AM in Kostroma?
When it is 9:00 AM in Kostroma, it is 3:00 AM in Buenos Aires.
What time is it in Buenos Aires when it is 6:00 PM in Kostroma?
When it is 6:00 PM in Kostroma, it is 12:00 PM in Buenos Aires.
When do working hours in Kostroma and in Buenos Aires overlap?
Working hours (9:00 AM–6:00 PM) overlap from 3:00 PM to 6:00 PM in Kostroma, which is 9:00 AM to 12:00 PM in Buenos Aires.
When is it still the previous day in Buenos Aires?
Until 6:00 AM in Kostroma it is still the previous day in Buenos Aires. The other way round, from 6:00 PM in Buenos Aires it is already the next day in Kostroma.
Is the time difference between Kostroma and Buenos Aires the same all year?
Yes. Neither Kostroma nor Buenos Aires switches to summer time, so the gap is always 6 hours.
