South Korea to Johannesburg
-7hSouth Korea
KSTSOURCEJohannesburg
SASTGreen 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.
KST – Korea Standard Time
UTC+09:00Korea Standard Time (KST) is the time zone for South Korea, 9 hours ahead of UTC.
- •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).
SAST – South Africa Standard Time
UTC+02:00South Africa Standard Time (SAST) is the time zone for South Africa and neighboring countries, 2 hours ahead of UTC.
- •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.
About Johannesburg
WikipediaJohannesburg operates on South Africa Time (SAST), UTC+2. As Africa's largest economy hub and home to the JSE, Johannesburg drives African financial markets.
Johannesburg is built on the world's largest gold deposit.
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 AM | 5:00 PM | previous day |
| 6:00 AM | 11:00 PM | previous day |
| 7:00 AM | 12:00 AM | same day |
| 8:00 AM | 1:00 AM | same day |
| 9:00 AM | 2:00 AM | same day |
| 12:00 PM | 5:00 AM | same day |
| 3:00 PM | 8:00 AM | same day |
| 5:00 PM | 10:00 AM | same day |
| 6:00 PM | 11:00 AM | same day |
| 9:00 PM | 2:00 PM | same 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.
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 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).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More South Korea time conversions
- south korea to seoul
- south korea to kst
- south korea to new york
- south korea to london
- south korea to dubai
- south korea to tokyo
- south korea to singapore
- south korea to sydney
- south korea to los angeles
- south korea to paris
- south korea to delhi
- south korea to mumbai
- south korea to berlin
- south korea to hong kong
- south korea to toronto
- south korea to kathmandu
- new york to south korea
- london to south korea
- dubai to south korea
- tokyo to south korea
- singapore to south korea
- sydney to south korea
- los angeles to south korea
- paris to south korea
- delhi to south korea
- mumbai to south korea
- berlin to south korea
- hong kong to south korea
- toronto to south korea
- kathmandu to south korea
See every conversion from South Korea →·See every conversion from Johannesburg →