Does it account for Daylight Saving Time?

Yes, our converter uses the IANA timezone database, which includes all current DST rules for every timezone in the world.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

Can I compare multiple timezones at once?

Yes, you can add multiple cities or timezones and see the equivalent times side by side.

How many timezones are there in the world?

There are 38 distinct UTC offsets in use, ranging from UTC-12 to UTC+14. This includes half-hour (UTC+5:30 India, UTC+9:30 Australia) and 45-minute offsets (UTC+5:45 Nepal, UTC+8:45 Australia).

What is the International Date Line?

The International Date Line (IDL) runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you gain a day; crossing eastward, you lose a day.

Why do some timezones have 30 or 45 minute offsets?

Countries chose offsets that best matched their solar noon. India uses UTC+5:30 and Nepal uses UTC+5:45 because standard hourly offsets didn't align well with their geography.

Which country has the most timezones?

France has the most (12 timezones) due to overseas territories. Russia spans 11 timezones. The US has 6 (including Hawaii and Alaska).

Seoul to Chile

-12h

Seoul

KSTSOURCE

South Korea · UTC+09:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Chile

CLST

UTC-03:00☀ DST active

HH12

MM00

00:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Seoul

Chile

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 CLST on the World Map

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

KST Zone

→

CLST 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

CLT – Chile Standard Time

UTC-04:00

Chile Standard Time (CLT) is the time zone for continental Chile, 4 hours behind UTC.

Countries in CLT

Chile

Major Cities in CLT

SantiagoValparaísoConcepciónViña del MarAntofagasta

Key Facts about CLT

•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.

Daylight Saving:Yes – switches to CLST

Learn more about CLT 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 →

Seoul to Chile Time Difference – Complete Guide

Seoul runs on Korean Standard Time (KST) at UTC+09:00. Chile runs on Chile Summer Time (CLST) at UTC-03:00, also currently on daylight saving time. That puts Seoul 12 hours behind Chile — a difference of -12h at the current offsets.

In practice, when it is 9:00 AM in Seoul it is 9:00 PM in Chile on the previous day. Midnight in Seoul is 12:00 PM in Chile.Chile observes daylight saving time while Seoul does not, so the gap narrows or widens by an hour part of the year.

Seoul to Chile time conversion table

Seoul (KST)	Chile (CLST)	Day
12:00 AM	12:00 PM	previous day
6:00 AM	6:00 PM	previous day
7:00 AM	7:00 PM	previous day
8:00 AM	8:00 PM	previous day
9:00 AM	9:00 PM	previous day
12:00 PM	12:00 AM	same day
3:00 PM	3:00 AM	same day
5:00 PM	5:00 AM	same day
6:00 PM	6:00 AM	same day
9:00 PM	9:00 AM	same day

Why people convert Seoul to Chile time

Scheduling a call from Seoul to Chile: a 10:00 AM start in Seoul lands at 10:00 PM in Chile the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -12h gap: Seoul and Chile 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 Chile is 9:00 PM in Seoul.
Watching a live event or market open: Seoul viewers need 9:00 PM in Chile 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 Chile does.
Chile: Clocks fall back on Sun, Apr 4, 2027. Any meeting series spanning that date will shift by an hour in local time.

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 Seoul and Chile

With a -12h offset there is no overlap inside a normal 9 AM – 5 PM day. Chile opens at 9:00 AM CLST, 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 Chile 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 Chile (KST UTC+09:00 → CLST 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.

🕐 Daylight Saving Time Info

Seoul

Does not observe DST

Chile

☀ 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:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between Seoul and Chile?

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

How do I convert Seoul time to Chile time?

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

What time is it in Chile right now?

Chile uses CLST 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 Chile 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 Chile.

Which is behind, Seoul or Chile?

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

Do Seoul and Chile use different time zones?

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

Does daylight saving time affect the Seoul–Chile difference?

Yes at the moment: Chile is on daylight saving time and Seoul is not, so the -12h gap shifts by an hour when exactly one of them changes clocks.

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 Chile?

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

What is the time difference between Seoul and Chile?

Chile 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 Chile in?

Chile 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 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.