Bangkok to HKT
+1hBangkok
ICTSOURCEHKT
HKTGreen rows indicate typical business hours (9 AM - 5 PM)
ICT and HKT on the World Map
The map below highlights the ICT (Indochina Time) and HKT (Hong Kong Time) timezone regions across the globe.
ICT – Indochina Time
UTC+07:00Indochina Time (ICT) is the time zone for Vietnam, Thailand, Laos, and Cambodia, 7 hours ahead of UTC.
- •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.
HKT – Hong Kong Time
UTC+08:00Hong Kong Time (HKT, UTC+08:00) is the time zone for Hong Kong, 8 hours ahead of UTC.
- •Hong Kong does not observe daylight saving time and has kept UTC+08:00 since 1979.
- •HKT shares its offset with China Standard Time, Singapore Time and Philippine Time.
- •The Hong Kong Stock Exchange opens at 09:30 HKT.
- •Hong Kong Time does not change with the seasons, so its gap to other zones is fixed.
About Bangkok
WikipediaBangkok operates on Indochina Time (ICT), UTC+7. As Southeast Asia's largest economy hub, Bangkok bridges East Asian and South Asian business hours.
Bangkok is one of the world's most visited cities, with over 22 million visitors annually.
Bangkok vs HKT: Offsets, DST and Best Call Times
Bangkok runs on Indochina Time (ICT) at UTC+07:00. HKT runs on Hong Kong Time (HKT) at UTC+08:00. That puts Bangkok 1 hour ahead of HKT — a difference of +1h at the current offsets.
In practice, when it is 9:00 AM in Bangkok it is 10:00 AM in HKT. Midnight in Bangkok is 1:00 AM in HKT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Bangkok to HKT time conversion table
| Bangkok (ICT) | HKT (HKT) | Day |
|---|---|---|
| 12:00 AM | 1:00 AM | same day |
| 6:00 AM | 7:00 AM | same day |
| 7:00 AM | 8:00 AM | same day |
| 8:00 AM | 9:00 AM | same day |
| 9:00 AM | 10:00 AM | same day |
| 12:00 PM | 1:00 PM | same day |
| 3:00 PM | 4:00 PM | same day |
| 5:00 PM | 6:00 PM | same day |
| 6:00 PM | 7:00 PM | same day |
| 9:00 PM | 10:00 PM | same day |
Why people convert Bangkok to HKT time
- Scheduling a call from Bangkok to HKT: a 10:00 AM start in Bangkok lands at 11:00 AM in HKT, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Bangkok and HKT are inside the 9-to-5 working day between 9:00 AM and 4:00 PM ICT time (10:00 AM–5:00 PM HKT). That is roughly 7 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in Bangkok is 9:00 PM in HKT 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 +1h gap is not.
- Block 9:00 AM–4:00 PM ICT as the recurring meeting window if you work primarily from Bangkok and need HKT 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 HKT (Hong Kong Time)
Hong Kong Time (HKT) is fixed at UTC+08:00 all year and does not observe daylight saving time. Hong Kong last used summer time in 1979 and has kept a single offset since. HKT shares the UTC+08:00 offset with China Standard Time, Singapore Time, Malaysian Time, Philippine Time and Australian Western Standard Time, but is listed separately because Hong Kong maintains its own timekeeping authority. As a major financial centre, Hong Kong's trading hours set the rhythm for markets across Asia, opening at 09:30 HKT which is 01:30 in London and 20:30 the previous evening in New York.
Best time to call between Bangkok and HKT
Both Bangkok and HKT sit inside the 9 AM – 5 PM working day between 9:00 AM–4:00 PM ICT, which is 10:00 AM–5:00 PM HKT. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Bangkok and HKT share 7 hours of working-hours overlap (9:00 AM–4:00 PM ICT), so scheduling a live meeting is straightforward.
Bangkok is 1 hour ahead of HKT (ICT UTC+07:00 → HKT UTC+08:00). The shared working window is 9:00 AM–4:00 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:
Frequently Asked Questions
What is the time difference between Bangkok and HKT?
Bangkok (ICT, UTC+07:00) is 1 hour ahead of HKT (HKT, UTC+08:00). The gap is currently +1h.
How do I convert Bangkok time to HKT time?
Add +1h to Bangkok local time. For example, 9:00 AM in Bangkok is 10:00 AM in HKT.
What time is it in HKT right now?
HKT uses HKT at UTC+08:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +1h offset from Bangkok.
What is the best time to call HKT from Bangkok?
Call between 9:00 AM and 4:00 PM ICT — that maps to 10:00 AM–5:00 PM HKT and keeps both parties inside the working day.
Which is ahead, Bangkok or HKT?
Bangkok is 1 hour ahead of HKT. When it is 12:00 PM in Bangkok it is 1:00 PM in HKT.
Do Bangkok and HKT use different time zones?
Bangkok (Thailand) uses ICT at UTC+07:00, while HKT uses HKT at UTC+08:00. The IANA identifiers are Asia/Bangkok and Asia/Hong_Kong.
Does daylight saving time affect the Bangkok–HKT difference?
Neither zone observes daylight saving time, so the +1h offset between Bangkok and HKT 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 HKT?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between Bangkok and HKT?
HKT is +1h 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 HKT in?
HKT 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 HKT timezone?
Major cities in the HKT timezone include Hong Kong, Kowloon, Tsuen Wan, Sha Tin.
What is the UTC offset for HKT?
Hong Kong Time (HKT) is at UTC+08:00.
What should I know about the HKT timezone?
Hong Kong does not observe daylight saving time and has kept UTC+08:00 since 1979. HKT shares its offset with China Standard Time, Singapore Time and Philippine Time.
When is it midnight in Bangkok, what time is it in HKT?
When it is 12:00 AM (midnight) in Bangkok (ICT), it is +1h later in HKT (HKT).
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