Offset
The time difference between Christchurch and Buenos Aires is 15 hours.
Christchurch (NZST) is ahead of Buenos Aires (ART).
NZST: UTC+12
ART: UTC-3
Neither Christchurch nor Buenos Aires is currently observing daylight saving time.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Christchurch and Buenos Aires don't overlap on the same weekday. Buenos Aires is 15 hours behind Christchurch.
Realistic options: hand off asynchronously, or stretch one side by an hour to catch the other team at the start or end of their day.
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.
New Zealand
- New Year's DayThu, Jan 1
- Day after New Year's DayFri, Jan 2
- Waitangi DayFri, Feb 6
- Good FridayFri, Apr 3
- Easter MondayMon, Apr 6
- Anzac DayMon, Apr 27
- King's BirthdayMon, Jun 1
- MatarikiFri, Jul 10
- Labour DayMon, Oct 26
- Christmas DayFri, Dec 25
- Boxing DayMon, Dec 28
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
About these zones
Christchurch uses New Zealand Time (NZST, or NZDT). To call New Zealand, dial +64.
Buenos Aires uses Argentina Time (ART). To call Argentina, dial +54.
Buenos Aires is approximately 6,150 miles southeast of Christchurch.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Christchurch | Buenos Aires | Day |
|---|---|---|
| 12:00 am | 9:00 am | -1 day |
| 1:00 am | 10:00 am | -1 day |
| 2:00 am | 11:00 am | -1 day |
| 3:00 am | 12:00 pm | -1 day |
| 4:00 am | 1:00 pm | -1 day |
| 5:00 am | 2:00 pm | -1 day |
| 6:00 am | 3:00 pm | -1 day |
| 7:00 am | 4:00 pm | -1 day |
| 8:00 am | 5:00 pm | -1 day |
| 9:00 am | 6:00 pm | -1 day |
| 10:00 am | 7:00 pm | -1 day |
| 11:00 am | 8:00 pm | -1 day |
| 12:00 pm | 9:00 pm | -1 day |
| 1:00 pm | 10:00 pm | -1 day |
| 2:00 pm | 11:00 pm | -1 day |
| 3:00 pm | 12:00 am | Same day |
| 4:00 pm | 1:00 am | Same day |
| 5:00 pm | 2:00 am | Same day |
| 6:00 pm | 3:00 am | Same day |
| 7:00 pm | 4:00 am | Same day |
| 8:00 pm | 5:00 am | Same day |
| 9:00 pm | 6:00 am | Same day |
| 10:00 pm | 7:00 am | Same day |
| 11:00 pm | 8:00 am | Same day |
Daylight saving time
Christchurch observes daylight saving time; Buenos Aires does not. The offset between the two zones changes when Christchurch transitions: on Sunday, September 27, 2026, clocks spring forward from NZST to NZDT.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 7:58 AM
- Sunset
- 5:01 PM
- Day length
- 9h 3m
- Sunrise
- 7:56 AM
- Sunset
- 5:51 PM
- Day length
- 9h 55m
Daylight overlap: 53m — 7:58 AM–8:51 AM in Christchurch (4:58 PM–5:51 PM in Buenos Aires). Both locations are in daylight during this window.
Cities in these zones
Other cities in New Zealand Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in New Zealand Time
- AKL
- CHC
- WLG
Airports in Argentina Time
- AEP
- EZE
Related conversions
Common conversions
- What is 9:00 am Christchurch in Buenos Aires?
- 9:00 am Christchurch is 6:00 pm Buenos Aires, the previous day.
- What is 12:00 pm Christchurch in Buenos Aires?
- 12:00 pm Christchurch is 9:00 pm Buenos Aires, the previous day.
- What is 12:30 pm Christchurch in Buenos Aires?
- 12:30 pm Christchurch is 9:30 pm Buenos Aires, the previous day.
- What is 2:00 pm Christchurch in Buenos Aires?
- 2:00 pm Christchurch is 11:00 pm Buenos Aires, the previous day.
- What is 5:00 pm Christchurch in Buenos Aires?
- 5:00 pm Christchurch is 2:00 am Buenos Aires.
- What is 11:30 pm Christchurch in Buenos Aires?
- 11:30 pm Christchurch is 8:30 am Buenos Aires.