HKT to KST
+1hHKT
HKTSOURCEKST
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).
Everything You Need to Know About HKT and KST Time
HKT runs on Hong Kong Time (HKT) at UTC+08:00. KST runs on Korea Standard Time (KST) at UTC+09:00. That puts HKT 1 hour ahead of KST — a difference of +1h at the current offsets.
In practice, when it is 9:00 AM in HKT it is 10:00 AM in KST. Midnight in HKT is 1:00 AM in KST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
HKT to KST time conversion table
| HKT (HKT) | KST (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 HKT to KST time
- Scheduling a call from HKT to KST: a 10:00 AM start in HKT lands at 11:00 AM in KST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both HKT and KST 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.
- Coordinating a HKT-based team with KST contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- 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 HKT and need KST 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 HKT and KST
Both HKT and KST 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
HKT and KST share 7 hours of working-hours overlap (9:00 AM–4:00 PM HKT), so scheduling a live meeting is straightforward.
HKT is 1 hour ahead of KST (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 HKT and KST?
HKT (HKT, UTC+08:00) is 1 hour ahead of KST (KST, UTC+09:00). The gap is currently +1h.
How do I convert HKT time to KST time?
Add +1h to HKT local time. For example, 9:00 AM in HKT is 10:00 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 +1h offset from HKT.
What is the best time to call KST from HKT?
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, HKT or KST?
HKT is 1 hour ahead of KST. When it is 12:00 PM in HKT it is 1:00 PM in KST.
Does daylight saving time affect the HKT–KST difference?
Neither zone observes daylight saving time, so the +1h offset between HKT and KST is fixed all year.
Which other cities share HKT's time zone?
HKT also covers Hong Kong, Kowloon, Tsuen Wan, Sha Tin.
Which countries use HKT, HKT's zone?
HKT is used in Hong Kong SAR.
Is there a day difference between HKT and KST?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between HKT and KST?
KST is +1h from HKT.
What timezone is HKT in?
HKT operates on its local timezone.
What timezone is KST in?
KST operates on its local timezone.
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 HKT, what time is it in KST?
When it is 12:00 AM (midnight) in HKT (HKT), it is +1h later in KST (KST).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More HKT time conversions
- hkt to hong kong
- hkt to new york
- hkt to london
- hkt to dubai
- hkt to tokyo
- hkt to singapore
- hkt to sydney
- hkt to los angeles
- hkt to paris
- hkt to delhi
- hkt to mumbai
- hkt to berlin
- hkt to toronto
- hkt to kathmandu
- new york to hkt
- london to hkt
- dubai to hkt
- tokyo to hkt
- singapore to hkt
- sydney to hkt
- los angeles to hkt
- paris to hkt
- delhi to hkt
- mumbai to hkt
- berlin to hkt
- hong kong to hkt
- toronto to hkt
- kathmandu to hkt
See every conversion from HKT →·See every conversion from KST →