CAT to KST Converter & Meeting Planner
Quick answer: 9:00 AM CAT = 4:00 PM KST (fixed +02:00 standard offset — not DST-adjusted). Use the interactive converter below for DST-aware local-time scheduling.
Planning a call or meeting between Central Africa Time (CAT) and Korea Standard Time (KST)? You need to account for the standard time difference. Korea Standard Time is normally 7 hours ahead of Central Africa Time. Whether you are coordinating between teams in Johannesburg and Harare and Seoul and Busan, our live tool has you covered. Use our interactive overlap studio below to find the perfect waking hours for both regions, taking into account any seasonal Daylight Saving Time (DST) changes.
24-Hour Conversion Table
Quick reference: 12:00 AM CAT = 7:00 AM KST. The full 24-hour CAT to KST table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM CAT = 10:00 PM KST.
| CAT Time | KST Time |
|---|---|
| 12:00 AM (00:00) | 7:00 AM (07:00) |
| 1:00 AM (01:00) | 8:00 AM (08:00) |
| 2:00 AM (02:00) | 9:00 AM (09:00) |
| 3:00 AM (03:00) | 10:00 AM (10:00) |
| 4:00 AM (04:00) | 11:00 AM (11:00) |
| 5:00 AM (05:00) | 12:00 PM (12:00) |
| 6:00 AM (06:00) | 1:00 PM (13:00) |
| 7:00 AM (07:00) | 2:00 PM (14:00) |
| 8:00 AM (08:00) | 3:00 PM (15:00) |
| 9:00 AM (09:00) | 4:00 PM (16:00) |
| 10:00 AM (10:00) | 5:00 PM (17:00) |
| 11:00 AM (11:00) | 6:00 PM (18:00) |
| 12:00 PM (12:00) | 7:00 PM (19:00) |
| 1:00 PM (13:00) | 8:00 PM (20:00) |
| 2:00 PM (14:00) | 9:00 PM (21:00) |
| 3:00 PM (15:00) | 10:00 PM (22:00) |
| 4:00 PM (16:00) | 11:00 PM (23:00) |
| 5:00 PM (17:00) | 12:00 AM (00:00)+1 day |
| 6:00 PM (18:00) | 1:00 AM (01:00)+1 day |
| 7:00 PM (19:00) | 2:00 AM (02:00)+1 day |
| 8:00 PM (20:00) | 3:00 AM (03:00)+1 day |
| 9:00 PM (21:00) | 4:00 AM (04:00)+1 day |
| 10:00 PM (22:00) | 5:00 AM (05:00)+1 day |
| 11:00 PM (23:00) | 6:00 AM (06:00)+1 day |
Best time to call Seoul from Johannesburg
For most work calls, compare the normal business day in Johannesburg (CAT) with the business day in Seoul (KST). CAT commonly covers Southern Africa, Central Africa, while KST is mainly associated with East Asia.
⚠️ Note: 2026-07-05 is not a normal workday in one or both regions based on their configured calendar. The overlap below should be treated as a reference, not a guaranteed office-hours window.
✅ The most practical overlap on 2026-07-05 is usually 8:00 AM - 11:00 AM CAT, which corresponds to 3:00 PM - 6:00 PM KST. This window sits inside the typical CAT workday (8:00 AM - 5:00 PM) and the KST workday (9:00 AM - 6:00 PM).
- DST Safety: Neither CAT nor KST uses Daylight Saving Time in our dataset, making business-hour relationships stable year-round.
- Johannesburg Stock Exchange (JSE): 09:00-17:00 local time in Johannesburg.
- Korea Exchange (KRX): 09:00-15:30 local time in Seoul.
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Frequently Asked Questions
What is the time difference between CAT and KST?
During standard time, Korea Standard Time is 7 hours ahead of Central Africa Time.
Does the Central Africa Time zone observe Daylight Saving Time?
None of the countries observing Central Africa Time use Daylight Saving Time. South Africa abolished DST in 1994, and no other CAT-observing nation currently applies seasonal clock changes — CAT remains permanently fixed at UTC+02:00 throughout the year.
Which major countries use Central Africa Time (CAT)?
Central Africa Time is observed by South Africa, Zimbabwe, Zambia, Botswana, Mozambique, Malawi, and Eswatini. South Africa is the zone's dominant economy, with Johannesburg functioning as the region's primary financial center and home to the Johannesburg Stock Exchange (JSE), Africa's largest equity market by capitalization.
Does South Korea observe Daylight Saving Time?
South Korea does not observe Daylight Saving Time and has not done so since 1988, when DST was discontinued following the Seoul Summer Olympics. KST remains fixed at UTC+9:00 every day of the year, meaning the offset between Seoul and any DST-observing country shifts by one hour twice annually when those countries change their clocks.
Are KST and JST the same?
Yes, Korea Standard Time (KST) and Japan Standard Time (JST) share the identical UTC+9:00 offset, and neither country observes Daylight Saving Time. Seoul and Tokyo run on exactly the same clock year-round, which directly supports the deep semiconductor, automotive, and consumer electronics supply chain integration between the two economies.