Offset
The time difference between Buenos Aires and Vienna is 5 hours.
Buenos Aires (ART) is behind Vienna (CEST).
ART: UTC-3
CEST: UTC+2
Vienna is currently observing daylight saving time; Buenos Aires is not.
When to schedule
Business-hours overlap: 9 AM–12 PM in Buenos Aires (2 PM–5 PM in Vienna).
Both teams are in working hours during this window on weekdays.
Suggested time: 10:00 AM Buenos Aires (3:00 PM Vienna).
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Argentina
- New Year's DayThu, Jan 1
- CarnivalMon, Feb 16
- CarnivalTue, Feb 17
- Day of Remembrance for Truth and JusticeTue, Mar 24
- Day of the Veterans and Fallen of the Malvinas WarThu, Apr 2
- Good FridayFri, Apr 3
- Labour DayFri, May 1
- May RevolutionMon, May 25
- Anniversary of the Passing of General Martín Miguel de GüemesMon, Jun 15
- General Manuel Belgrano Memorial DaySat, Jun 20
- Independence DayThu, Jul 9
- General José de San Martín Memorial DayMon, Aug 17
- Day of Respect for Cultural DiversityMon, Oct 12
- National Sovereignty DayMon, Nov 23
- Immaculate Conception DayTue, Dec 8
- Christmas DayFri, Dec 25
Austria
- New Year's DayThu, Jan 1
- EpiphanyTue, Jan 6
- Easter SundaySun, Apr 5
- Easter MondayMon, Apr 6
- National HolidayFri, May 1
- Ascension DayThu, May 14
- PentecostSun, May 24
- Whit MondayMon, May 25
- Corpus ChristiThu, Jun 4
- Assumption DaySat, Aug 15
- National HolidayMon, Oct 26
- All Saints' DaySun, Nov 1
- Immaculate ConceptionTue, Dec 8
- Christmas DayFri, Dec 25
- St. Stephen's DaySat, Dec 26
About these zones
Buenos Aires uses Argentina Time (ART). To call Argentina, dial +54.
Vienna uses Central European Time (CET, or CEST). To call Austria, dial +43.
Vienna is approximately 7,350 miles northeast of Buenos Aires.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Buenos Aires | Vienna | Day |
|---|---|---|
| 12:00 am | 5:00 am | Same day |
| 1:00 am | 6:00 am | Same day |
| 2:00 am | 7:00 am | Same day |
| 3:00 am | 8:00 am | Same day |
| 4:00 am | 9:00 am | Same day |
| 5:00 am | 10:00 am | Same day |
| 6:00 am | 11:00 am | Same day |
| 7:00 am | 12:00 pm | Same day |
| 8:00 am | 1:00 pm | Same day |
| 9:00 am | 2:00 pm | Same day |
| 10:00 am | 3:00 pm | Same day |
| 11:00 am | 4:00 pm | Same day |
| 12:00 pm | 5:00 pm | Same day |
| 1:00 pm | 6:00 pm | Same day |
| 2:00 pm | 7:00 pm | Same day |
| 3:00 pm | 8:00 pm | Same day |
| 4:00 pm | 9:00 pm | Same day |
| 5:00 pm | 10:00 pm | Same day |
| 6:00 pm | 11:00 pm | Same day |
| 7:00 pm | 12:00 am | +1 day |
| 8:00 pm | 1:00 am | +1 day |
| 9:00 pm | 2:00 am | +1 day |
| 10:00 pm | 3:00 am | +1 day |
| 11:00 pm | 4:00 am | +1 day |
Daylight saving time
Vienna observes daylight saving time; Buenos Aires does not. The offset between the two zones changes when Vienna transitions: on Sunday, October 25, 2026, clocks fall back from CEST to CET.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 7:57 AM
- Sunset
- 5:50 PM
- Day length
- 9h 54m
- Sunrise
- 4:56 AM
- Sunset
- 8:53 PM
- Day length
- 15h 57m
Daylight overlap: 7h 56m — 7:57 AM–3:53 PM in Buenos Aires (12:57 PM–8:53 PM in Vienna). Both locations are in daylight during this window.
Airports in these zones
Airports in Argentina Time
- AEP
- EZE
Airports in Central European Time
- VIE
Related conversions
Common conversions
- What is 9:00 am Buenos Aires in Vienna?
- 9:00 am Buenos Aires is 2:00 pm Vienna.
- What is 12:00 pm Buenos Aires in Vienna?
- 12:00 pm Buenos Aires is 5:00 pm Vienna.
- What is 12:30 pm Buenos Aires in Vienna?
- 12:30 pm Buenos Aires is 5:30 pm Vienna.
- What is 2:00 pm Buenos Aires in Vienna?
- 2:00 pm Buenos Aires is 7:00 pm Vienna.
- What is 5:00 pm Buenos Aires in Vienna?
- 5:00 pm Buenos Aires is 10:00 pm Vienna.
- What is 11:30 pm Buenos Aires in Vienna?
- 11:30 pm Buenos Aires is 4:30 am Vienna, the next day.