Does it account for Daylight Saving Time?

Yes, our converter uses the IANA timezone database, which includes all current DST rules for every timezone in the world.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

Can I compare multiple timezones at once?

Yes, you can add multiple cities or timezones and see the equivalent times side by side.

How many timezones are there in the world?

There are 38 distinct UTC offsets in use, ranging from UTC-12 to UTC+14. This includes half-hour (UTC+5:30 India, UTC+9:30 Australia) and 45-minute offsets (UTC+5:45 Nepal, UTC+8:45 Australia).

What is the International Date Line?

The International Date Line (IDL) runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you gain a day; crossing eastward, you lose a day.

Why do some timezones have 30 or 45 minute offsets?

Countries chose offsets that best matched their solar noon. India uses UTC+5:30 and Nepal uses UTC+5:45 because standard hourly offsets didn't align well with their geography.

Which country has the most timezones?

France has the most (12 timezones) due to overseas territories. Russia spans 11 timezones. The US has 6 (including Hawaii and Alaska).

Auckland to Buenos Aires

-16h

Auckland

NZDTSOURCE

New Zealand · UTC+13:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Buenos Aires

ART

Argentina · UTC-03:00

HH08

MM00

(previous day)20:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Auckland

Buenos Aires

12:00 AM

8:00 AM-1

2:00 AM

10:00 AM-1

4:00 AM

12:00 PM-1

6:00 AM

2:00 PM-1

8:00 AM

4:00 PM-1

10:00 AM

6:00 PM-1

12:00 PM

8:00 PM-1

2:00 PM

10:00 PM-1

4:00 PM

12:00 AM

6:00 PM

2:00 AM

8:00 PM

4:00 AM

10:00 PM

6:00 AM

Green rows indicate typical business hours (9 AM - 5 PM)

NZDT and ART on the World Map

The map below highlights the NZDT (New Zealand Standard Time) and ART (Argentina Time) timezone regions across the globe.

NZDT Zone

→

ART Zone

Explore all world timezones interactively →

NZST – New Zealand Standard Time

UTC+12:00

New Zealand Standard Time (NZST) is the time zone for New Zealand, 12 hours ahead of UTC.

Countries in NZST

New Zealand

Major Cities in NZST

AucklandWellingtonChristchurchHamiltonDunedin

Key Facts about NZST

•New Zealand is among the first major countries to see a new day.
•NZST is 17 hours ahead of EST.
•New Zealand observes DST from September to April (Southern Hemisphere summer).

Daylight Saving:Yes – switches to NZDT

Learn more about NZST on Wikipedia

ART – Argentina Time

UTC-03:00

Argentina Time (ART) is the standard time for Argentina, 3 hours behind UTC.

Countries in ART

Argentina

Major Cities in ART

Buenos AiresCórdobaRosarioMendozaLa PlataTucumán

Key Facts about ART

•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).

Daylight Saving:No – UTC-03:00 year-round

Learn more about ART on Wikipedia

About Auckland

Wikipedia

Auckland operates on New Zealand Standard Time (NZST), UTC+12. As the first major city to see each day, Auckland opens global business ahead of all other markets.

Population:1.7 million

Metro:1.7 million

Business Hours:9:00 AM - 5:00 PM NZST

Currency:NZD (NZ$)

Stock Exchange:NZX (New Zealand Exchange)

Key Landmarks

Sky TowerAuckland Harbour BridgeAuckland War Memorial MuseumWaiheke IslandRangitoto Island

Did You Know?

Auckland is the first major city to see the sunrise each day (along with cities further east).

Learn more about NZDT timezone →

About Buenos Aires

Wikipedia

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.

Population:3 million

Metro:15.4 million

Business Hours:9:00 AM - 6:00 PM ART

Currency:ARS ($)

Stock Exchange:BCBA (Buenos Aires Stock Exchange)

Key Landmarks

Casa RosadaTeatro ColónLa BocaRecoleta CemeteryObelisco

Did You Know?

The Teatro Colón is considered one of the best opera houses in the world for acoustics.

Learn more about ART timezone →

Auckland vs Buenos Aires: Offsets, DST and Best Call Times

Auckland runs on New Zealand Daylight Time (NZDT) at UTC+13:00, currently observing daylight saving time. Buenos Aires runs on Argentina Standard Time (ART) at UTC-03:00. That puts Auckland 16 hours behind Buenos Aires — a difference of -16h at the current offsets.

In practice, when it is 9:00 AM in Auckland it is 5:00 PM in Buenos Aires on the previous day. Midnight in Auckland is 8:00 AM in Buenos Aires.Auckland observes daylight saving time while Buenos Aires does not, so the gap narrows or widens by an hour part of the year.

Auckland to Buenos Aires time conversion table

Auckland (NZDT)	Buenos Aires (ART)	Day
12:00 AM	8:00 AM	previous day
6:00 AM	2:00 PM	previous day
7:00 AM	3:00 PM	previous day
8:00 AM	4:00 PM	previous day
9:00 AM	5:00 PM	previous day
12:00 PM	8:00 PM	previous day
3:00 PM	11:00 PM	previous day
5:00 PM	1:00 AM	same day
6:00 PM	2:00 AM	same day
9:00 PM	5:00 AM	same day

Why people convert Auckland to Buenos Aires time

Scheduling a call from Auckland to Buenos Aires: a 10:00 AM start in Auckland lands at 6:00 PM in Buenos Aires the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -16h gap: Auckland and Buenos Aires 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 Buenos Aires is 5:00 PM in Auckland.
Booking travel or deliveries: tracking Buenos Aires local time against Auckland keeps pickup windows and arrival estimates honest across the -16h offset.

Always state the zone abbreviation, not just the hour. "3:00 PM NZDT" is unambiguous; "3 PM" across a -16h gap is not.
With a -16h gap there is no shared 9-to-5 window, so alternate the early start: one week Auckland takes the early slot, the next week Buenos Aires does.
Auckland: Clocks fall back on Sat, Apr 3, 2027. Re-check this page after that date because the offset changes and so does the -16h gap.

About NZST (New Zealand Standard Time)

New Zealand Standard Time (NZST) is the standard time zone for New Zealand and its dependencies. New Zealand is among the first countries to see a new calendar day. During summer (September to April), clocks advance to New Zealand Daylight Time (NZDT, UTC+13:00).

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.

Best time to call between Auckland and Buenos Aires

With a -16h offset there is no overlap inside a normal 9 AM – 5 PM day. Buenos Aires opens at 9:00 AM ART, which is 5:00 PM in Auckland, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

Auckland and Buenos Aires have no shared working hours because of the -16h gap. Teams need to alternate early starts or rely on asynchronous handovers.

Auckland is 16 hours behind Buenos Aires (NZDT UTC+13:00 → ART UTC-03:00). 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

Auckland

☀ Currently in DST

Standard: UTC+12:00 · DST: UTC+13:00

Clocks fall back on Sat, Apr 3, 2027

Buenos Aires

Does not observe DST

Learn More About Time

Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between Auckland and Buenos Aires?

Auckland (NZDT, UTC+13:00) is 16 hours behind Buenos Aires (ART, UTC-03:00). The gap is currently -16h.

How do I convert Auckland time to Buenos Aires time?

Add -16h to Auckland local time. For example, 9:00 AM in Auckland is 5:00 PM in Buenos Aires (previous day).

What time is it in Buenos Aires right now?

Buenos Aires uses ART at UTC-03:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -16h offset from Auckland.

What is the best time to call Buenos Aires from Auckland?

There is no shared working-hours window because of the -16h gap. The closest option is 1:00 PM in Auckland, which is 9:00 PM in Buenos Aires.

Which is behind, Auckland or Buenos Aires?

Auckland is 16 hours behind Buenos Aires. When it is 12:00 PM in Auckland it is 8:00 PM in Buenos Aires.

Do Auckland and Buenos Aires use different time zones?

Auckland (New Zealand) uses NZDT at UTC+13:00, while Buenos Aires (Argentina) uses ART at UTC-03:00. The IANA identifiers are Pacific/Auckland and America/Buenos_Aires.

Does daylight saving time affect the Auckland–Buenos Aires difference?

Yes at the moment: Auckland is on daylight saving time and Buenos Aires is not, so the -16h gap shifts by an hour when exactly one of them changes clocks.

Which other cities share Auckland's time zone?

NZDT also covers Auckland, Wellington, Christchurch, Hamilton, Dunedin.

Which countries use NZDT, Auckland's zone?

NZDT is used in New Zealand.

Is there a day difference between Auckland and Buenos Aires?

Sometimes. The -16h gap is large enough that 8:00 PM or later in Auckland already falls on the in Buenos Aires.

What is the time difference between Auckland and Buenos Aires?

Buenos Aires is -16h from Auckland.

What timezone is Auckland in?

Auckland operates on New Zealand Standard Time (NZST), UTC+12. As the first major city to see each day, Auckland opens global business ahead of all other markets.

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 are the business hours in Auckland?

Standard business hours in Auckland are 9:00 AM - 5:00 PM NZST.

What are the business hours in Buenos Aires?

Standard business hours in Buenos Aires are 9:00 AM - 6:00 PM ART.

What is the best time to schedule a call between Auckland and Buenos Aires?

The best overlap for a call is when both cities are in business hours. Auckland works 9:00 AM - 5:00 PM NZST and Buenos Aires works 9:00 AM - 6:00 PM ART (-16h difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in Auckland and Buenos Aires?

Auckland uses NZD (NZ$) while Buenos Aires uses ARS ($). Check current exchange rates when planning travel or business between these cities.

How do Auckland and Buenos Aires compare in size?

Auckland has a population of approximately 1.7 million (metro: 1.7 million), while Buenos Aires has approximately 3 million (metro: 15.4 million).

What are the major landmarks in Auckland and Buenos Aires?

Auckland is known for Sky Tower, Auckland Harbour Bridge, Auckland War Memorial Museum. Buenos Aires is famous for Casa Rosada, Teatro Colón, La Boca.

Do Auckland and Buenos Aires have stock exchanges?

Yes. Auckland has the NZX (New Zealand Exchange) and Buenos Aires has the BCBA (Buenos Aires Stock Exchange). The -16h time difference affects trading hour overlaps between these exchanges.