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South Korea to Johannesburg

-7h

South Korea

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

Johannesburg

SAST
South Africa · UTC+02:00
HH05
:
MM00
  
05:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM
South Korea
Johannesburg
12:00 AM
5:00 PM-1
2:00 AM
7:00 PM-1
4:00 AM
9:00 PM-1
6:00 AM
11:00 PM-1
8:00 AM
1:00 AM
10:00 AM
3:00 AM
12:00 PM
5:00 AM
2:00 PM
7:00 AM
4:00 PM
9:00 AM
6:00 PM
11:00 AM
8:00 PM
1:00 PM
10:00 PM
3:00 PM

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

KST and SAST on the World Map

The map below highlights the KST (Korea Standard Time) and SAST (South Africa Standard Time) timezone regions across the globe.

KSTSASTSeoulBusanIncheonDaeguJohannesburgCape TownDurbanPretoria
KST Zone
→
SAST 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

SAST – South Africa Standard Time

UTC+02:00

South Africa Standard Time (SAST) is the time zone for South Africa and neighboring countries, 2 hours ahead of UTC.

Countries in SAST
South AfricaLesothoEswatini
Major Cities in SAST
JohannesburgCape TownDurbanPretoriaPort Elizabeth
Key Facts about SAST
  • •South Africa does not observe daylight saving time.
  • •SAST is the same offset as EET and Israel Standard Time.
  • •The Johannesburg Stock Exchange (JSE) is Africa's largest.
Daylight Saving:No – UTC+02:00 year-round
Learn more about SAST on Wikipedia

About Johannesburg

Wikipedia

Johannesburg operates on South Africa Time (SAST), UTC+2. As Africa's largest economy hub and home to the JSE, Johannesburg drives African financial markets.

Population:5.8 million
Metro:10.5 million
Business Hours:8:00 AM - 5:00 PM SAST
Currency:ZAR (R)
Stock Exchange:JSE (Johannesburg Stock Exchange)
Key Landmarks
Apartheid MuseumConstitution HillGold Reef CityMaboneng PrecinctSoweto
Did You Know?

Johannesburg is built on the world's largest gold deposit.

Learn more about SAST timezone →

Understanding the -7h Gap: South Korea vs Johannesburg

South Korea runs on Korean Standard Time (KST) at UTC+09:00. Johannesburg runs on South Africa Standard Time (SAST) at UTC+02:00. That puts South Korea 7 hours behind Johannesburg — a difference of -7h at the current offsets.

In practice, when it is 9:00 AM in South Korea it is 2:00 AM in Johannesburg. Midnight in South Korea is 5:00 PM in Johannesburg. Neither zone observes daylight saving time, so the offset between them stays constant all year.

South Korea to Johannesburg time conversion table

South Korea (KST)Johannesburg (SAST)Day
12:00 AM5:00 PMprevious day
6:00 AM11:00 PMprevious day
7:00 AM12:00 AMsame day
8:00 AM1:00 AMsame day
9:00 AM2:00 AMsame day
12:00 PM5:00 AMsame day
3:00 PM8:00 AMsame day
5:00 PM10:00 AMsame day
6:00 PM11:00 AMsame day
9:00 PM2:00 PMsame day

Why people convert South Korea to Johannesburg time

  • Scheduling a call from South Korea to Johannesburg: a 10:00 AM start in South Korea lands at 3:00 AM in Johannesburg, so you can confirm the slot without doing the arithmetic yourself.
  • Finding shared working hours: both South Korea and Johannesburg are inside the 9-to-5 working day between 4:00 PM and 5:00 PM KST time (9:00 AM–10:00 AM SAST). That is roughly 1 hours of usable overlap.
  • Coordinating a South Korea-based team with Johannesburg contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
  • Always state the zone abbreviation, not just the hour. "3:00 PM KST" is unambiguous; "3 PM" across a -7h gap is not.
  • Block 4:00 PM–5:00 PM KST as the recurring meeting window if you work primarily from South Korea and need Johannesburg colleagues present.

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 SAST (South Africa Standard Time)

South Africa Standard Time (SAST) is used in South Africa, Lesotho, and Eswatini. SAST does not observe daylight saving time. Johannesburg and Cape Town are major economic hubs in Africa.

Best time to call between South Korea and Johannesburg

Both South Korea and Johannesburg sit inside the 9 AM – 5 PM working day between 4:00 PM–5:00 PM KST, which is 9:00 AM–10:00 AM SAST. That gives roughly 1 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

South Korea and Johannesburg overlap for only 60 minutes (4:00 PM–5:00 PM KST), so meetings have to be booked precisely.

South Korea is 7 hours behind Johannesburg (KST UTC+09:00 → SAST UTC+02:00). The shared working window is 4:00 PM–5:00 PM KST. Remember to re-check around daylight-saving transitions.

Frequently Asked Questions

What is the time difference between South Korea and Johannesburg?

South Korea (KST, UTC+09:00) is 7 hours behind Johannesburg (SAST, UTC+02:00). The gap is currently -7h.

How do I convert South Korea time to Johannesburg time?

Add -7h to South Korea local time. For example, 9:00 AM in South Korea is 2:00 AM in Johannesburg.

What time is it in Johannesburg right now?

Johannesburg uses SAST at UTC+02:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -7h offset from South Korea.

What is the best time to call Johannesburg from South Korea?

Call between 4:00 PM and 5:00 PM KST — that maps to 9:00 AM–10:00 AM SAST and keeps both parties inside the working day.

Which is behind, South Korea or Johannesburg?

South Korea is 7 hours behind Johannesburg. When it is 12:00 PM in South Korea it is 5:00 AM in Johannesburg.

Do South Korea and Johannesburg use different time zones?

South Korea (South Korea) uses KST at UTC+09:00, while Johannesburg (South Africa) uses SAST at UTC+02:00. The IANA identifiers are Asia/Seoul and Africa/Johannesburg.

Does daylight saving time affect the South Korea–Johannesburg difference?

Neither zone observes daylight saving time, so the -7h offset between South Korea and Johannesburg is fixed all year.

Which other cities share South Korea's time zone?

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

Which countries use KST, South Korea's zone?

KST is used in South Korea, North Korea.

Is there a day difference between South Korea and Johannesburg?

Not normally. The -7h gap only pushes the date over the previous day.

What is the time difference between South Korea and Johannesburg?

Johannesburg is -7h from South Korea.

What timezone is South Korea in?

South Korea operates on its local timezone.

What timezone is Johannesburg in?

Johannesburg operates on South Africa Time (SAST), UTC+2. As Africa's largest economy hub and home to the JSE, Johannesburg drives African financial markets.

What are the business hours in Johannesburg?

Standard business hours in Johannesburg are 8:00 AM - 5:00 PM SAST.

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 SAST timezone?

Major cities in the SAST timezone include Johannesburg, Cape Town, Durban, Pretoria, Port Elizabeth.

What is the UTC offset for SAST?

South Africa Standard Time (SAST) is at UTC+02:00.

What should I know about the SAST timezone?

South Africa does not observe daylight saving time. SAST is the same offset as EET and Israel Standard Time.

When is it midnight in South Korea, what time is it in Johannesburg?

When it is 12:00 AM (midnight) in South Korea (KST), it is -7h later in Johannesburg (SAST).