Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

Bangkok to Seoul

+2h

Bangkok

ICTSOURCE

Thailand · UTC+07:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Seoul

KST

South Korea · UTC+09:00

HH02

MM00

14:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Bangkok

Seoul

12:00 AM

2:00 AM

4:00 AM

6:00 AM

8:00 AM

10:00 AM

12:00 PM

2:00 PM

4:00 PM

6:00 PM

8:00 PM

10:00 PM

12:00 AM+1

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

ICT and KST on the World Map

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

ICT Zone

→

KST Zone

Explore all world timezones interactively →

ICT – Indochina Time

UTC+07:00

Indochina Time (ICT) is the time zone for Vietnam, Thailand, Laos, and Cambodia, 7 hours ahead of UTC.

Countries in ICT

ThailandVietnamCambodiaLaosIndonesia (WIB)

Major Cities in ICT

BangkokHo Chi Minh CityHanoiJakartaPhnom PenhVientiane

Key Facts about ICT

•Bangkok is one of the most visited cities in the world.
•ICT is 12 hours ahead of EST.
•Thailand, Vietnam, and Cambodia all share ICT.

Daylight Saving:No – UTC+07:00 year-round

Learn more about ICT on Wikipedia

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

About Bangkok

Wikipedia

Bangkok operates on Indochina Time (ICT), UTC+7. As Southeast Asia's largest economy hub, Bangkok bridges East Asian and South Asian business hours.

Population:8.3 million

Metro:14.6 million

Business Hours:8:30 AM - 5:30 PM ICT

Currency:THB (฿)

Stock Exchange:SET (Stock Exchange of Thailand)

Key Landmarks

Grand PalaceWat ArunWat PhoChatuchak MarketKhao San Road

Did You Know?

Bangkok is one of the world's most visited cities, with over 22 million visitors annually.

Learn more about ICT timezone →

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 →

Comparing Time Zones: Bangkok and Seoul

Bangkok runs on Indochina Time (ICT) at UTC+07:00. Seoul runs on Korean Standard Time (KST) at UTC+09:00. That puts Bangkok 2 hours ahead of Seoul — a difference of +2h at the current offsets.

In practice, when it is 9:00 AM in Bangkok it is 11:00 AM in Seoul. Midnight in Bangkok is 2:00 AM in Seoul. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Bangkok to Seoul time conversion table

Bangkok (ICT)	Seoul (KST)	Day
12:00 AM	2:00 AM	same day
6:00 AM	8:00 AM	same day
7:00 AM	9:00 AM	same day
8:00 AM	10:00 AM	same day
9:00 AM	11:00 AM	same day
12:00 PM	2:00 PM	same day
3:00 PM	5:00 PM	same day
5:00 PM	7:00 PM	same day
6:00 PM	8:00 PM	same day
9:00 PM	11:00 PM	same day

Why people convert Bangkok to Seoul time

Scheduling a call from Bangkok to Seoul: a 10:00 AM start in Bangkok lands at 12:00 PM in Seoul, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Bangkok and Seoul are inside the 9-to-5 working day between 9:00 AM and 3:00 PM ICT time (11:00 AM–5:00 PM KST). That is roughly 6 hours of usable overlap.
Keeping family and friends in sync: knowing that 8:00 PM in Bangkok is 10:00 PM in Seoul makes it easy to avoid calling at 3 AM.

Always state the zone abbreviation, not just the hour. "3:00 PM ICT" is unambiguous; "3 PM" across a +2h gap is not.
Block 9:00 AM–3:00 PM ICT as the recurring meeting window if you work primarily from Bangkok and need Seoul colleagues present.

About ICT (Indochina Time)

Indochina Time (ICT) is used across Southeast Asia including Vietnam, Thailand, Laos, and Cambodia. Indonesia (Western time, WIB) also uses UTC+07:00. ICT does not observe daylight saving 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.

Best time to call between Bangkok and Seoul

Both Bangkok and Seoul sit inside the 9 AM – 5 PM working day between 9:00 AM–3:00 PM ICT, which is 11:00 AM–5:00 PM KST. That gives roughly 6 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Bangkok and Seoul share 6 hours of working-hours overlap (9:00 AM–3:00 PM ICT), so scheduling a live meeting is straightforward.

Bangkok is 2 hours ahead of Seoul (ICT UTC+07:00 → KST UTC+09:00). The shared working window is 9:00 AM–3:00 PM ICT. 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:

⏳

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 Bangkok and Seoul?

Bangkok (ICT, UTC+07:00) is 2 hours ahead of Seoul (KST, UTC+09:00). The gap is currently +2h.

How do I convert Bangkok time to Seoul time?

Add +2h to Bangkok local time. For example, 9:00 AM in Bangkok is 11:00 AM in Seoul.

What time is it in Seoul right now?

Seoul uses KST at UTC+09:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +2h offset from Bangkok.

What is the best time to call Seoul from Bangkok?

Call between 9:00 AM and 3:00 PM ICT — that maps to 11:00 AM–5:00 PM KST and keeps both parties inside the working day.

Which is ahead, Bangkok or Seoul?

Bangkok is 2 hours ahead of Seoul. When it is 12:00 PM in Bangkok it is 2:00 PM in Seoul.

Do Bangkok and Seoul use different time zones?

Bangkok (Thailand) uses ICT at UTC+07:00, while Seoul (South Korea) uses KST at UTC+09:00. The IANA identifiers are Asia/Bangkok and Asia/Seoul.

Does daylight saving time affect the Bangkok–Seoul difference?

Neither zone observes daylight saving time, so the +2h offset between Bangkok and Seoul is fixed all year.

Which other cities share Bangkok's time zone?

ICT also covers Bangkok, Ho Chi Minh City, Hanoi, Jakarta, Phnom Penh, Vientiane.

Which countries use ICT, Bangkok's zone?

ICT is used in Thailand, Vietnam, Cambodia, Laos, Indonesia (WIB).

Is there a day difference between Bangkok and Seoul?

Not normally. The +2h gap only pushes the date over for late-evening times.

What is the time difference between Bangkok and Seoul?

Seoul is +2h from Bangkok.

What timezone is Bangkok in?

Bangkok operates on Indochina Time (ICT), UTC+7. As Southeast Asia's largest economy hub, Bangkok bridges East Asian and South Asian business hours.

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 are the business hours in Bangkok?

Standard business hours in Bangkok are 8:30 AM - 5:30 PM ICT.

What are the business hours in Seoul?

Standard business hours in Seoul are 9:00 AM - 6:00 PM KST.

What is the best time to schedule a call between Bangkok and Seoul?

The best overlap for a call is when both cities are in business hours. Bangkok works 8:30 AM - 5:30 PM ICT and Seoul works 9:00 AM - 6:00 PM KST (+2h difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in Bangkok and Seoul?

Bangkok uses THB (฿) while Seoul uses KRW (₩). Check current exchange rates when planning travel or business between these cities.

How do Bangkok and Seoul compare in size?

Bangkok has a population of approximately 8.3 million (metro: 14.6 million), while Seoul has approximately 9.7 million (metro: 25.5 million).

What are the major landmarks in Bangkok and Seoul?

Bangkok is known for Grand Palace, Wat Arun, Wat Pho. Seoul is famous for Gyeongbokgung Palace, N Seoul Tower, Bukchon Hanok Village.

Do Bangkok and Seoul have stock exchanges?

Yes. Bangkok has the SET (Stock Exchange of Thailand) and Seoul has the KRX (Korea Exchange). The +2h time difference affects trading hour overlaps between these exchanges.