Buenos Aires to Constanta: time difference
Constanta is 6 h ahead of Buenos Aires. 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.
Buenos Aires 23:23 11:23 PM Constanta 05:23 5:23 AM You –:–
23:23 11:23 PM
Argentina Standard Time · UTC-3
☀️ 06:20 · 🌙 19:03
05:23 5:23 AM
Eastern European Summer Time · UTC+3
☀️ 07:14 · 🌙 18:32
·
+6 h
Constanta is 6 h ahead of Buenos Aires.
When you, Buenos Aires and Constanta 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
🇷🇴 Constanta
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 4 4 AM 5 5 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇦🇷 Buenos Aires | 🇷🇴 Constanta |
|---|---|---|
| Local time | 23:23 | 05:23 |
| Local date | Friday, October 9, 2026 | Saturday, October 10, 2026 |
| Time zone | Argentina Standard Time | Eastern European Summer Time |
| UTC offset | UTC-3 | UTC+3 |
| Offset from Buenos Aires | — | +6 h |
| IANA zone | America/Argentina/Buenos Aires | Europe/Bucharest |
| Daylight saving | Not observed | On summer time → UTC+2, Oct 25, 03:00 |
| Sunrise | 06:20 | 07:14 |
| Sunset | 19:03 | 18:32 |
| Daylight | 12 h 43 min | 11 h 18 min |
| People on this clock | 2,891,082 | 283,872 |
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 Constanta: common questions
How many hours ahead of Buenos Aires is Constanta?
The clocks in Constanta are 6 hours ahead of those in Buenos Aires (UTC+3 and UTC−3).
If it is 9:00 AM in Buenos Aires, what time is it in Constanta?
At 9:00 AM in Buenos Aires, clocks in Constanta show 3:00 PM.
What time is it in Constanta when it is 6:00 PM in Buenos Aires?
When it is 6:00 PM in Buenos Aires, it is 12:00 AM (the next day) in Constanta.
When is a good time to call Constanta from Buenos Aires?
Between 9:00 AM and 12:00 PM in Buenos Aires – that is 3:00 PM to 6:00 PM in Constanta – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Constanta?
From 6:00 PM in Buenos Aires it is already the next day in Constanta. The other way round, until 6:00 AM in Constanta it is still the previous day in Buenos Aires.
Does the time gap between Buenos Aires and Constanta change during the year?
Yes – daylight saving time is used in Constanta but not in Buenos Aires. From October 25, 2026, Constanta will be 5 hours ahead of Buenos Aires.
