Hong Kong to Seoul
+1hHong Kong
HKTSOURCESeoul
KSTGreen rows indicate typical business hours (9 AM - 5 PM)
HKT and KST on the World Map
The map below highlights the HKT (Hong Kong Time) and KST (Korea Standard Time) timezone regions across the globe.
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.
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).
About Hong Kong
WikipediaHong Kong Time (HKT) is UTC+8 with no daylight saving. As a major financial gateway to China, Hong Kong trading hours overlap with European morning sessions.
The city has one of the world's most efficient and affordable public transit systems.
About Seoul
WikipediaSeoul operates on Korea Standard Time (KST), UTC+9, same as Japan. As a global tech and entertainment hub, Seoul coordinates with East Asian markets.
Seoul has the fastest average internet speed in the world.
Hong Kong vs Seoul: Offsets, DST and Best Call Times
Hong Kong runs on Hong Kong Standard Time (HKT) at UTC+08:00. Seoul runs on Korean Standard Time (KST) at UTC+09:00. That puts Hong Kong 1 hour ahead of Seoul — a difference of +1h at the current offsets.
In practice, when it is 9:00 AM in Hong Kong it is 10:00 AM in Seoul. Midnight in Hong Kong is 1:00 AM in Seoul. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Hong Kong to Seoul time conversion table
| Hong Kong (HKT) | Seoul (KST) | 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 Hong Kong to Seoul time
- Scheduling a call from Hong Kong to Seoul: a 10:00 AM start in Hong Kong lands at 11:00 AM in Seoul, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Hong Kong and Seoul are inside the 9-to-5 working day between 9:00 AM and 4:00 PM HKT time (10:00 AM–5:00 PM KST). That is roughly 7 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in Hong Kong is 9:00 PM in Seoul makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM HKT" is unambiguous; "3 PM" across a +1h gap is not.
- Block 9:00 AM–4:00 PM HKT as the recurring meeting window if you work primarily from Hong Kong and need Seoul colleagues present.
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.
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 Hong Kong and Seoul
Both Hong Kong and Seoul sit inside the 9 AM – 5 PM working day between 9:00 AM–4:00 PM HKT, which is 10:00 AM–5:00 PM KST. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Hong Kong and Seoul share 7 hours of working-hours overlap (9:00 AM–4:00 PM HKT), so scheduling a live meeting is straightforward.
Hong Kong is 1 hour ahead of Seoul (HKT UTC+08:00 → KST UTC+09:00). The shared working window is 9:00 AM–4:00 PM HKT. 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 Hong Kong and Seoul?
Hong Kong (HKT, UTC+08:00) is 1 hour ahead of Seoul (KST, UTC+09:00). The gap is currently +1h.
How do I convert Hong Kong time to Seoul time?
Add +1h to Hong Kong local time. For example, 9:00 AM in Hong Kong is 10:00 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 +1h offset from Hong Kong.
What is the best time to call Seoul from Hong Kong?
Call between 9:00 AM and 4:00 PM HKT — that maps to 10:00 AM–5:00 PM KST and keeps both parties inside the working day.
Which is ahead, Hong Kong or Seoul?
Hong Kong is 1 hour ahead of Seoul. When it is 12:00 PM in Hong Kong it is 1:00 PM in Seoul.
Do Hong Kong and Seoul use different time zones?
Hong Kong (Hong Kong) uses HKT at UTC+08:00, while Seoul (South Korea) uses KST at UTC+09:00. The IANA identifiers are Asia/Hong_Kong and Asia/Seoul.
Does daylight saving time affect the Hong Kong–Seoul difference?
Neither zone observes daylight saving time, so the +1h offset between Hong Kong and Seoul is fixed all year.
Which other cities share Hong Kong's time zone?
HKT also covers Hong Kong, Kowloon, Tsuen Wan, Sha Tin.
Which countries use HKT, Hong Kong's zone?
HKT is used in Hong Kong SAR.
Is there a day difference between Hong Kong and Seoul?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between Hong Kong and Seoul?
Seoul is +1h from Hong Kong.
What timezone is Hong Kong in?
Hong Kong Time (HKT) is UTC+8 with no daylight saving. As a major financial gateway to China, Hong Kong trading hours overlap with European morning sessions.
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 Hong Kong?
Standard business hours in Hong Kong are 9:00 AM - 6:00 PM HKT.
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 Hong Kong and Seoul?
The best overlap for a call is when both cities are in business hours. Hong Kong works 9:00 AM - 6:00 PM HKT and Seoul works 9:00 AM - 6:00 PM KST (+1h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Hong Kong and Seoul?
Hong Kong uses HKD (HK$) while Seoul uses KRW (₩). Check current exchange rates when planning travel or business between these cities.
How do Hong Kong and Seoul compare in size?
Hong Kong has a population of approximately 7.5 million (metro: 7.5 million), while Seoul has approximately 9.7 million (metro: 25.5 million).
What are the major landmarks in Hong Kong and Seoul?
Hong Kong is known for Victoria Peak, Tian Tan Buddha, Victoria Harbour. Seoul is famous for Gyeongbokgung Palace, N Seoul Tower, Bukchon Hanok Village.
Do Hong Kong and Seoul have stock exchanges?
Yes. Hong Kong has the HKEX (Hong Kong Stock Exchange) and Seoul has the KRX (Korea Exchange). The +1h time difference affects trading hour overlaps between these exchanges.
Which countries use HKT (Hong Kong Time)?
HKT is used in Hong Kong SAR.
Does HKT observe daylight saving time?
No, HKT does not observe daylight saving time and remains at UTC+08:00 year-round.
What are some interesting facts about HKT?
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.
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 Hong Kong, what time is it in Seoul?
When it is 12:00 AM (midnight) in Hong Kong (HKT), it is +1h later in Seoul (KST).
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