Buenos Aires to AEST
+13hBuenos Aires
ARTSOURCEAEST
AESTGreen rows indicate typical business hours (9 AM - 5 PM)
ART and AEST on the World Map
The map below highlights the ART (Argentina Time) and AEST (Australian Eastern Standard Time) timezone regions across the globe.
ART – Argentina Time
UTC-03:00Argentina Time (ART) is the standard time for Argentina, 3 hours behind UTC.
- •Argentina does not observe daylight saving time.
- •Buenos Aires is one of the most visited cities in South America.
- •ART is the same offset as BRT (UTC-03:00).
AEST – Australian Eastern Standard Time
UTC+10:00Australian Eastern Standard Time (AEST) covers eastern Australia, 10 hours ahead of UTC.
- •Queensland does not observe daylight saving time, staying on AEST year-round.
- •Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.
- •The Australian Securities Exchange (ASX) operates on AEST/AEDT.
- •AEST is 15 hours ahead of EST during winter.
About Buenos Aires
WikipediaBuenos Aires operates on Argentina Time (ART), UTC-3. As South America's most European city, Buenos Aires coordinates with Brazilian markets in the same timezone.
The Teatro Colón is considered one of the best opera houses in the world for acoustics.
Buenos Aires vs AEST: Offsets, DST and Best Call Times
Buenos Aires runs on Argentina Standard Time (ART) at UTC-03:00. AEST runs on Australian Eastern Standard Time (AEST) at UTC+10:00. That puts Buenos Aires 13 hours ahead of AEST — a difference of +13h at the current offsets.
In practice, when it is 9:00 AM in Buenos Aires it is 10:00 PM in AEST. Midnight in Buenos Aires is 1:00 PM in AEST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Buenos Aires to AEST time conversion table
| Buenos Aires (ART) | AEST (AEST) | Day |
|---|---|---|
| 12:00 AM | 1:00 PM | same day |
| 6:00 AM | 7:00 PM | same day |
| 7:00 AM | 8:00 PM | same day |
| 8:00 AM | 9:00 PM | same day |
| 9:00 AM | 10:00 PM | same day |
| 12:00 PM | 1:00 AM | next day |
| 3:00 PM | 4:00 AM | next day |
| 5:00 PM | 6:00 AM | next day |
| 6:00 PM | 7:00 AM | next day |
| 9:00 PM | 10:00 AM | next day |
Why people convert Buenos Aires to AEST time
- Scheduling a call from Buenos Aires to AEST: a 10:00 AM start in Buenos Aires lands at 11:00 PM in AEST, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +13h gap: Buenos Aires and AEST have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in AEST is 10:00 PM in Buenos Aires.
- Watching a live event or market open: Buenos Aires viewers need 10:00 PM in AEST to catch a 9:00 AM start there, and 11:00 AM if the event is anchored to Buenos Aires.
- Always state the zone abbreviation, not just the hour. "3:00 PM ART" is unambiguous; "3 PM" across a +13h gap is not.
- With a +13h gap there is no shared 9-to-5 window, so alternate the early start: one week Buenos Aires takes the early slot, the next week AEST does.
About ART (Argentina Time)
Argentina Time (ART) is the time zone used throughout Argentina. Argentina does not observe daylight saving time. ART shares the same offset as Brasilia Time (BRT) and Uruguay's UYT.
About AEST (Australian Eastern Standard Time)
Australian Eastern Standard Time (AEST) is used in the eastern states of Australia including New South Wales, Victoria, Queensland, Tasmania, and the ACT. During summer (October to April), NSW, VIC, TAS, and ACT switch to Australian Eastern Daylight Time (AEDT, UTC+11:00), while Queensland remains on AEST year-round.
Best time to call between Buenos Aires and AEST
With a +13h offset there is no overlap inside a normal 9 AM – 5 PM day. AEST opens at 9:00 AM AEST, which is 10:00 PM in Buenos Aires, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Buenos Aires and AEST have no shared working hours because of the +13h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Buenos Aires is 13 hours ahead of AEST (ART UTC-03:00 → AEST UTC+10:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Buenos Aires
Does not observe DST
AEST
❄ Currently in Standard Time
Standard: UTC+10:00 · DST: UTC+11:00
Clocks spring forward on Sat, Oct 3, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Buenos Aires and AEST?
Buenos Aires (ART, UTC-03:00) is 13 hours ahead of AEST (AEST, UTC+10:00). The gap is currently +13h.
How do I convert Buenos Aires time to AEST time?
Add +13h to Buenos Aires local time. For example, 9:00 AM in Buenos Aires is 10:00 PM in AEST.
What time is it in AEST right now?
AEST uses AEST at UTC+10:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +13h offset from Buenos Aires.
What is the best time to call AEST from Buenos Aires?
There is no shared working-hours window because of the +13h gap. The closest option is 1:00 PM in Buenos Aires, which is 2:00 AM in AEST.
Which is ahead, Buenos Aires or AEST?
Buenos Aires is 13 hours ahead of AEST. When it is 12:00 PM in Buenos Aires it is 1:00 AM in AEST.
Do Buenos Aires and AEST use different time zones?
Buenos Aires (Argentina) uses ART at UTC-03:00, while AEST uses AEST at UTC+10:00. The IANA identifiers are America/Buenos_Aires and Australia/Sydney.
Does daylight saving time affect the Buenos Aires–AEST difference?
Neither zone observes daylight saving time, so the +13h offset between Buenos Aires and AEST is fixed all year.
Which other cities share Buenos Aires's time zone?
ART also covers Buenos Aires, Córdoba, Rosario, Mendoza, La Plata, Tucumán.
Which countries use ART, Buenos Aires's zone?
ART is used in Argentina.
Is there a day difference between Buenos Aires and AEST?
Sometimes. The +13h gap is large enough that 8:00 PM or later in Buenos Aires already falls on the next day in AEST.
What is the time difference between Buenos Aires and AEST?
AEST is +13h from Buenos Aires.
What timezone is Buenos Aires in?
Buenos Aires operates on Argentina Time (ART), UTC-3. As South America's most European city, Buenos Aires coordinates with Brazilian markets in the same timezone.
What timezone is AEST in?
AEST operates on its local timezone.
What are the business hours in Buenos Aires?
Standard business hours in Buenos Aires are 9:00 AM - 6:00 PM ART.
Which countries use ART (Argentina Time)?
ART is used in Argentina.
Does ART observe daylight saving time?
No, ART does not observe daylight saving time and remains at UTC-03:00 year-round.
What are some interesting facts about ART?
Argentina does not observe daylight saving time. Buenos Aires is one of the most visited cities in South America.
Which cities are in the AEST timezone?
Major cities in the AEST timezone include Sydney, Melbourne, Brisbane, Canberra, Hobart, Gold Coast.
What is the UTC offset for AEST?
Australian Eastern Standard Time (AEST) is at UTC+10:00. During daylight saving time, it shifts to AEDT.
What should I know about the AEST timezone?
Queensland does not observe daylight saving time, staying on AEST year-round. Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.
When is it midnight in Buenos Aires, what time is it in AEST?
When it is 12:00 AM (midnight) in Buenos Aires (ART), it is +13h later in AEST (AEST).
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