Herramientas Intosoft

Seoul to ART

-12h

Seoul

KSTSOURCE
South Korea · UTC+09:00
HH12
:
MM00
  
12:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM

ART

ART
UTC-03:00
HH12
:
MM00
  
00:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM
Seoul
ART
12:00 AM
12:00 PM-1
2:00 AM
2:00 PM-1
4:00 AM
4:00 PM-1
6:00 AM
6:00 PM-1
8:00 AM
8:00 PM-1
10:00 AM
10:00 PM-1
12:00 PM
12:00 AM
2:00 PM
2:00 AM
4:00 PM
4:00 AM
6:00 PM
6:00 AM
8:00 PM
8:00 AM
10:00 PM
10:00 AM

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

KST and ART on the World Map

The map below highlights the KST (Korea Standard Time) and ART (Argentina Time) timezone regions across the globe.

KSTARTSeoulBusanIncheonDaeguBuenos AiresCórdobaRosarioMendoza
KST Zone
→
ART Zone

Explore all world timezones interactively →

KST – Korea Standard Time

UTC+09:00

Korea Standard Time (KST) is the time zone for South Korea, 9 hours ahead of UTC.

Countries in KST
South KoreaNorth Korea
Major Cities in KST
SeoulBusanIncheonDaeguDaejeonPyongyang
Key Facts about KST
  • •South Korea does not observe daylight saving time.
  • •Seoul is home to Samsung, LG, and Hyundai headquarters.
  • •KST is the same offset as JST (UTC+09:00).
Daylight Saving:No – UTC+09:00 year-round
Learn more about KST 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 Seoul

Wikipedia

Seoul operates on Korea Standard Time (KST), UTC+9, same as Japan. As a global tech and entertainment hub, Seoul coordinates with East Asian markets.

Population:9.7 million
Metro:25.5 million
Business Hours:9:00 AM - 6:00 PM KST
Currency:KRW (₩)
Stock Exchange:KRX (Korea Exchange)
Key Landmarks
Gyeongbokgung PalaceN Seoul TowerBukchon Hanok VillageDongdaemun Design PlazaCheonggyecheon Stream
Did You Know?

Seoul has the fastest average internet speed in the world.

Learn more about KST timezone →

Everything You Need to Know About Seoul and ART Time

Seoul runs on Korean Standard Time (KST) at UTC+09:00. ART runs on Argentina Time (ART) at UTC-03:00. That puts Seoul 12 hours behind ART — a difference of -12h at the current offsets.

In practice, when it is 9:00 AM in Seoul it is 9:00 PM in ART on the previous day. Midnight in Seoul is 12:00 PM in ART. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Seoul to ART time conversion table

Seoul (KST)ART (ART)Day
12:00 AM12:00 PMprevious day
6:00 AM6:00 PMprevious day
7:00 AM7:00 PMprevious day
8:00 AM8:00 PMprevious day
9:00 AM9:00 PMprevious day
12:00 PM12:00 AMsame day
3:00 PM3:00 AMsame day
5:00 PM5:00 AMsame day
6:00 PM6:00 AMsame day
9:00 PM9:00 AMsame day

Why people convert Seoul to ART time

  • Scheduling a call from Seoul to ART: a 10:00 AM start in Seoul lands at 10:00 PM in ART the previous day, so you can confirm the slot without doing the arithmetic yourself.
  • Handling a -12h gap: Seoul and ART 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 ART is 9:00 PM in Seoul.
  • Watching a live event or market open: Seoul viewers need 9:00 PM in ART to catch a 9:00 AM start there, and 12:00 PM if the event is anchored to Seoul.
  • Always state the zone abbreviation, not just the hour. "3:00 PM KST" is unambiguous; "3 PM" across a -12h gap is not.
  • With a -12h gap there is no shared 9-to-5 window, so alternate the early start: one week Seoul takes the early slot, the next week ART does.

About KST (Korea Standard Time)

Korea Standard Time (KST) is the time zone used in South Korea. It shares the same UTC offset as Japan Standard Time but is a distinct time zone. South Korea does not observe daylight saving time. Seoul, the capital, is a major global tech and business hub.

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 Seoul and ART

With a -12h offset there is no overlap inside a normal 9 AM – 5 PM day. ART opens at 9:00 AM ART, which is 9:00 PM in Seoul, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

Seoul and ART have no shared working hours because of the -12h gap. Teams need to alternate early starts or rely on asynchronous handovers.

Seoul is 12 hours behind ART (KST UTC+09:00 → 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.

Frequently Asked Questions

What is the time difference between Seoul and ART?

Seoul (KST, UTC+09:00) is 12 hours behind ART (ART, UTC-03:00). The gap is currently -12h.

How do I convert Seoul time to ART time?

Add -12h to Seoul local time. For example, 9:00 AM in Seoul is 9:00 PM in ART (previous day).

What time is it in ART right now?

ART 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 -12h offset from Seoul.

What is the best time to call ART from Seoul?

There is no shared working-hours window because of the -12h gap. The closest option is 1:00 PM in Seoul, which is 1:00 AM in ART.

Which is behind, Seoul or ART?

Seoul is 12 hours behind ART. When it is 12:00 PM in Seoul it is 12:00 AM in ART.

Do Seoul and ART use different time zones?

Seoul (South Korea) uses KST at UTC+09:00, while ART uses ART at UTC-03:00. The IANA identifiers are Asia/Seoul and America/Buenos_Aires.

Does daylight saving time affect the Seoul–ART difference?

Neither zone observes daylight saving time, so the -12h offset between Seoul and ART is fixed all year.

Which other cities share Seoul's time zone?

KST also covers Seoul, Busan, Incheon, Daegu, Daejeon, Pyongyang.

Which countries use KST, Seoul's zone?

KST is used in South Korea, North Korea.

Is there a day difference between Seoul and ART?

Sometimes. The -12h gap is large enough that 8:00 PM or later in Seoul already falls on the in ART.

What is the time difference between Seoul and ART?

ART is -12h from Seoul.

What timezone is Seoul in?

Seoul operates on Korea Standard Time (KST), UTC+9, same as Japan. As a global tech and entertainment hub, Seoul coordinates with East Asian markets.

What timezone is ART in?

ART operates on its local timezone.

What are the business hours in Seoul?

Standard business hours in Seoul are 9:00 AM - 6:00 PM KST.

Which countries use KST (Korea Standard Time)?

KST is used in South Korea, North Korea.

Does KST observe daylight saving time?

No, KST does not observe daylight saving time and remains at UTC+09:00 year-round.

What are some interesting facts about KST?

South Korea does not observe daylight saving time. Seoul is home to Samsung, LG, and Hyundai headquarters.

Which cities are in the ART timezone?

Major cities in the ART timezone include Buenos Aires, Córdoba, Rosario, Mendoza, La Plata, Tucumán.

What is the UTC offset for ART?

Argentina Time (ART) is at UTC-03:00.

What should I know about the ART timezone?

Argentina does not observe daylight saving time. Buenos Aires is one of the most visited cities in South America.

When is it midnight in Seoul, what time is it in ART?

When it is 12:00 AM (midnight) in Seoul (KST), it is -12h later in ART (ART).