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Bangkok to KST

+2h

Bangkok

ICTSOURCE
Thailand · UTC+07:00
HH12
:
MM00
  
12:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM

KST

KST
UTC+09:00
HH02
:
MM00
  
14:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM
Bangkok
KST
12:00 AM
2:00 AM
2:00 AM
4:00 AM
4:00 AM
6:00 AM
6:00 AM
8:00 AM
8:00 AM
10:00 AM
10:00 AM
12:00 PM
12:00 PM
2:00 PM
2:00 PM
4:00 PM
4:00 PM
6:00 PM
6:00 PM
8:00 PM
8:00 PM
10:00 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.

ICTKSTBangkokHo Chi Minh CityHanoiJakartaSeoulBusanIncheonDaegu
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 →

Comparing Time Zones: Bangkok and KST

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

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

Bangkok to KST time conversion table

Bangkok (ICT)KST (KST)Day
12:00 AM2:00 AMsame day
6:00 AM8:00 AMsame day
7:00 AM9:00 AMsame day
8:00 AM10:00 AMsame day
9:00 AM11:00 AMsame day
12:00 PM2:00 PMsame day
3:00 PM5:00 PMsame day
5:00 PM7:00 PMsame day
6:00 PM8:00 PMsame day
9:00 PM11:00 PMsame day

Why people convert Bangkok to KST time

  • Scheduling a call from Bangkok to KST: a 10:00 AM start in Bangkok lands at 12:00 PM in KST, so you can confirm the slot without doing the arithmetic yourself.
  • Finding shared working hours: both Bangkok and KST 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.
  • Booking travel or deliveries: tracking KST local time against Bangkok keeps pickup windows and arrival estimates honest across the +2h offset.
  • 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 KST 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 KST

Both Bangkok and KST 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 KST 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 KST (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.

Frequently Asked Questions

What is the time difference between Bangkok and KST?

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

How do I convert Bangkok time to KST time?

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

What time is it in KST right now?

KST 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 KST 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 KST?

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

Do Bangkok and KST use different time zones?

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

Does daylight saving time affect the Bangkok–KST difference?

Neither zone observes daylight saving time, so the +2h offset between Bangkok and KST 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 KST?

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

What is the time difference between Bangkok and KST?

KST 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 KST in?

KST operates on its local timezone.

What are the business hours in Bangkok?

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

Which countries use ICT (Indochina Time)?

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

Does ICT observe daylight saving time?

No, ICT does not observe daylight saving time and remains at UTC+07:00 year-round.

What are some interesting facts about ICT?

Bangkok is one of the most visited cities in the world. ICT is 12 hours ahead of EST.

Which cities are in the KST timezone?

Major cities in the KST timezone include Seoul, Busan, Incheon, Daegu, Daejeon, Pyongyang.

What is the UTC offset for KST?

Korea Standard Time (KST) is at UTC+09:00.

What should I know about the KST timezone?

South Korea does not observe daylight saving time. Seoul is home to Samsung, LG, and Hyundai headquarters.

When is it midnight in Bangkok, what time is it in KST?

When it is 12:00 AM (midnight) in Bangkok (ICT), it is +2h later in KST (KST).