South Korea to CLT
-13hSouth Korea
KSTSOURCECLT
CLTGreen rows indicate typical business hours (9 AM - 5 PM)
KST and CLT on the World Map
The map below highlights the KST (Korea Standard Time) and CLT (Chile 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).
CLT – Chile Standard Time
UTC-04:00Chile Standard Time (CLT) is the time zone for continental Chile, 4 hours behind UTC.
- •Chile observes daylight saving time, switching to CLST (UTC-03:00) in summer.
- •Santiago is the largest city in Chile with over 6 million in the metro area.
- •Chile spans over 4,300 km from north to south but uses one timezone.
Comparing Time Zones: South Korea and CLT
South Korea runs on Korean Standard Time (KST) at UTC+09:00. CLT runs on Chile Standard Time (CLT) at UTC-04:00. That puts South Korea 13 hours behind CLT — a difference of -13h at the current offsets.
In practice, when it is 9:00 AM in South Korea it is 8:00 PM in CLT on the previous day. Midnight in South Korea is 11:00 AM in CLT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
South Korea to CLT time conversion table
| South Korea (KST) | CLT (CLT) | Day |
|---|---|---|
| 12:00 AM | 11:00 AM | previous day |
| 6:00 AM | 5:00 PM | previous day |
| 7:00 AM | 6:00 PM | previous day |
| 8:00 AM | 7:00 PM | previous day |
| 9:00 AM | 8:00 PM | previous day |
| 12:00 PM | 11:00 PM | previous day |
| 3:00 PM | 2:00 AM | same day |
| 5:00 PM | 4:00 AM | same day |
| 6:00 PM | 5:00 AM | same day |
| 9:00 PM | 8:00 AM | same day |
Why people convert South Korea to CLT time
- Scheduling a call from South Korea to CLT: a 10:00 AM start in South Korea lands at 9:00 PM in CLT the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -13h gap: South Korea and CLT 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 CLT is 8:00 PM in South Korea.
- Watching a live event or market open: South Korea viewers need 8:00 PM in CLT to catch a 9:00 AM start there, and 1:00 PM if the event is anchored to South Korea.
- Always state the zone abbreviation, not just the hour. "3:00 PM KST" is unambiguous; "3 PM" across a -13h gap is not.
- With a -13h gap there is no shared 9-to-5 window, so alternate the early start: one week South Korea takes the early slot, the next week CLT 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 CLT (Chile Standard Time)
Chile Standard Time (CLT) is the standard time in Chile. During summer months (October to March), Chile switches to Chile Summer Time (CLST, UTC-03:00). Chile is the longest north-south country in the world.
Best time to call between South Korea and CLT
With a -13h offset there is no overlap inside a normal 9 AM – 5 PM day. CLT opens at 9:00 AM CLT, which is 8:00 PM in South Korea, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
South Korea and CLT have no shared working hours because of the -13h gap. Teams need to alternate early starts or rely on asynchronous handovers.
South Korea is 13 hours behind CLT (KST UTC+09:00 → CLT UTC-04:00). 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
South Korea
Does not observe DST
CLT
☀ Currently in DST
Standard: UTC-04:00 · DST: UTC-03:00
Clocks fall back on Sun, Apr 4, 2027
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 CLT?
South Korea (KST, UTC+09:00) is 13 hours behind CLT (CLT, UTC-04:00). The gap is currently -13h.
How do I convert South Korea time to CLT time?
Add -13h to South Korea local time. For example, 9:00 AM in South Korea is 8:00 PM in CLT (previous day).
What time is it in CLT right now?
CLT uses CLT at UTC-04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -13h offset from South Korea.
What is the best time to call CLT from South Korea?
There is no shared working-hours window because of the -13h gap. The closest option is 1:00 PM in South Korea, which is 12:00 AM in CLT.
Which is behind, South Korea or CLT?
South Korea is 13 hours behind CLT. When it is 12:00 PM in South Korea it is 11:00 PM in CLT.
Do South Korea and CLT use different time zones?
South Korea (South Korea) uses KST at UTC+09:00, while CLT uses CLT at UTC-04:00. The IANA identifiers are Asia/Seoul and America/Santiago.
Does daylight saving time affect the South Korea–CLT difference?
Neither zone observes daylight saving time, so the -13h offset between South Korea and CLT 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 CLT?
Sometimes. The -13h gap is large enough that 8:00 PM or later in South Korea already falls on the in CLT.
What is the time difference between South Korea and CLT?
CLT is -13h from South Korea.
What timezone is South Korea in?
South Korea operates on its local timezone.
What timezone is CLT in?
CLT operates on its local timezone.
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 CLT timezone?
Major cities in the CLT timezone include Santiago, Valparaíso, Concepción, Viña del Mar, Antofagasta.
What is the UTC offset for CLT?
Chile Standard Time (CLT) is at UTC-04:00. During daylight saving time, it shifts to CLST.
What should I know about the CLT timezone?
Chile observes daylight saving time, switching to CLST (UTC-03:00) in summer. Santiago is the largest city in Chile with over 6 million in the metro area.
When is it midnight in South Korea, what time is it in CLT?
When it is 12:00 AM (midnight) in South Korea (KST), it is -13h later in CLT (CLT).
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