Offset
The time difference between Argentina Time and Australian Central Time is 12.5 hours.
Argentina Time (ART) is behind Australian Central Time (ACST).
ART: UTC-3
ACST: UTC+9:30
Neither Argentina Time nor Australian Central Time is currently observing daylight saving time.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Argentina Time and Australian Central Time don't overlap on the same weekday. Australian Central Time is 13 hours ahead of Argentina Time.
With some flexibility, there are two workable windows outside standard hours, depending on which side takes the early or late slot:
- 7 AM–8 AM in Argentina Time (7 PM–8 PM in Australian Central Time) — suggest 7:00 AM Argentina Time (7:30 PM Australian Central Time).
- 7 PM–8 PM in Argentina Time (7 AM–8 AM the next day in Australian Central Time) — suggest 7:00 PM Argentina Time (7:30 AM Australian Central Time).
Either is an early start or late finish for one side, but workable for a one-off meeting.
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
Australia
- New Year's DayThu, Jan 1
- Australia DayMon, Jan 26
- Good FridayFri, Apr 3
- Easter MondayMon, Apr 6
- Christmas DayFri, Dec 25
- St. Stephen's DayMon, Dec 28
About these zones
Argentina Time is also known as ART. To call Argentina, dial +54.
Australian Central Time is also known as ACST, or ACDT. To call Australia, dial +61.
Australian Central Time is approximately 7,500 miles south of Argentina Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| ART | ACST | Day |
|---|---|---|
| 12:00 am | 12:30 pm | Same day |
| 1:00 am | 1:30 pm | Same day |
| 2:00 am | 2:30 pm | Same day |
| 3:00 am | 3:30 pm | Same day |
| 4:00 am | 4:30 pm | Same day |
| 5:00 am | 5:30 pm | Same day |
| 6:00 am | 6:30 pm | Same day |
| 7:00 am | 7:30 pm | Same day |
| 8:00 am | 8:30 pm | Same day |
| 9:00 am | 9:30 pm | Same day |
| 10:00 am | 10:30 pm | Same day |
| 11:00 am | 11:30 pm | Same day |
| 12:00 pm | 12:30 am | +1 day |
| 1:00 pm | 1:30 am | +1 day |
| 2:00 pm | 2:30 am | +1 day |
| 3:00 pm | 3:30 am | +1 day |
| 4:00 pm | 4:30 am | +1 day |
| 5:00 pm | 5:30 am | +1 day |
| 6:00 pm | 6:30 am | +1 day |
| 7:00 pm | 7:30 am | +1 day |
| 8:00 pm | 8:30 am | +1 day |
| 9:00 pm | 9:30 am | +1 day |
| 10:00 pm | 10:30 am | +1 day |
| 11:00 pm | 11:30 am | +1 day |
Daylight saving time
Australian Central Time observes daylight saving time; Argentina Time does not. The offset between the two zones changes when Australian Central Time transitions: on Sunday, October 4, 2026, clocks spring forward from ACST to ACDT.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 7:55 AM
- Sunset
- 5:51 PM
- Day length
- 9h 56m
- Sunrise
- 7:18 AM
- Sunset
- 5:12 PM
- Day length
- 9h 55m
Cities in these zones
Cities in Argentina Time
Cities in Australian Central Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Argentina Time
- AEP
- EZE
Airports in Australian Central Time
- ADL
Related conversions
Common conversions
- What is 9:00 am ART in ACST?
- 9:00 am ART is 9:30 pm ACST.
- What is 12:00 pm ART in ACST?
- 12:00 pm ART is 12:30 am ACST, the next day.
- What is 12:30 pm ART in ACST?
- 12:30 pm ART is 1:00 am ACST, the next day.
- What is 2:00 pm ART in ACST?
- 2:00 pm ART is 2:30 am ACST, the next day.
- What is 5:00 pm ART in ACST?
- 5:00 pm ART is 5:30 am ACST, the next day.
- What is 11:30 pm ART in ACST?
- 11:30 pm ART is 12:00 pm ACST, the next day.