Hong Kong to Tokyo
+1hHong Kong
HKTSOURCETokyo
JSTGreen rows indicate typical business hours (9 AM - 5 PM)
HKT and JST on the World Map
The map below highlights the HKT (Hong Kong Time) and JST (Japan 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.
JST – Japan Standard Time
UTC+09:00Japan Standard Time (JST) is the time zone for Japan, 9 hours ahead of UTC.
- •Japan does not observe daylight saving time.
- •Tokyo is the most populous metropolitan area in the world.
- •The Tokyo Stock Exchange operates from 9:00 AM to 3:00 PM JST.
- •JST is 14 hours ahead of EST and 9 hours ahead of GMT.
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 Tokyo
WikipediaTokyo operates on Japan Standard Time (JST), which is 14 hours ahead of New York. As Asia's largest financial hub, Tokyo trading hours are crucial for global markets.
The Tokyo subway system moves approximately 8.7 million passengers daily.
Understanding the +1h Gap: Hong Kong vs Tokyo
Hong Kong runs on Hong Kong Standard Time (HKT) at UTC+08:00. Tokyo runs on Japan Standard Time (JST) at UTC+09:00. That puts Hong Kong 1 hour ahead of Tokyo — 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 Tokyo. Midnight in Hong Kong is 1:00 AM in Tokyo. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Hong Kong to Tokyo time conversion table
| Hong Kong (HKT) | Tokyo (JST) | 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 Tokyo time
- Scheduling a call from Hong Kong to Tokyo: a 10:00 AM start in Hong Kong lands at 11:00 AM in Tokyo, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Hong Kong and Tokyo are inside the 9-to-5 working day between 9:00 AM and 4:00 PM HKT time (10:00 AM–5:00 PM JST). That is roughly 7 hours of usable overlap.
- Booking travel or deliveries: tracking Tokyo local time against Hong Kong keeps pickup windows and arrival estimates honest across the +1h offset.
- 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 Tokyo 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 JST (Japan Standard Time)
Japan Standard Time (JST) is the standard time zone for all of Japan. Japan does not observe daylight saving time. JST is 9 hours ahead of UTC and 14 hours ahead of EST. The Tokyo Stock Exchange, the world's third largest by market capitalization, operates on JST. South Korea uses the same offset (KST) but it is a distinct time zone.
Best time to call between Hong Kong and Tokyo
Both Hong Kong and Tokyo 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 JST. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Hong Kong and Tokyo 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 Tokyo (HKT UTC+08:00 → JST 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 Tokyo?
Hong Kong (HKT, UTC+08:00) is 1 hour ahead of Tokyo (JST, UTC+09:00). The gap is currently +1h.
How do I convert Hong Kong time to Tokyo time?
Add +1h to Hong Kong local time. For example, 9:00 AM in Hong Kong is 10:00 AM in Tokyo.
What time is it in Tokyo right now?
Tokyo uses JST 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 Tokyo from Hong Kong?
Call between 9:00 AM and 4:00 PM HKT — that maps to 10:00 AM–5:00 PM JST and keeps both parties inside the working day.
Which is ahead, Hong Kong or Tokyo?
Hong Kong is 1 hour ahead of Tokyo. When it is 12:00 PM in Hong Kong it is 1:00 PM in Tokyo.
Do Hong Kong and Tokyo use different time zones?
Hong Kong (Hong Kong) uses HKT at UTC+08:00, while Tokyo (Japan) uses JST at UTC+09:00. The IANA identifiers are Asia/Hong_Kong and Asia/Tokyo.
Does daylight saving time affect the Hong Kong–Tokyo difference?
Neither zone observes daylight saving time, so the +1h offset between Hong Kong and Tokyo 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 Tokyo?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between Hong Kong and Tokyo?
Tokyo 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 Tokyo in?
Tokyo operates on Japan Standard Time (JST), which is 14 hours ahead of New York. As Asia's largest financial hub, Tokyo trading hours are crucial for global 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 Tokyo?
Standard business hours in Tokyo are 9:00 AM - 6:00 PM JST.
What is the best time to schedule a call between Hong Kong and Tokyo?
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 Tokyo works 9:00 AM - 6:00 PM JST (+1h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Hong Kong and Tokyo?
Hong Kong uses HKD (HK$) while Tokyo uses JPY (¥). Check current exchange rates when planning travel or business between these cities.
How do Hong Kong and Tokyo compare in size?
Hong Kong has a population of approximately 7.5 million (metro: 7.5 million), while Tokyo has approximately 14 million (metro: 37.4 million).
What are the major landmarks in Hong Kong and Tokyo?
Hong Kong is known for Victoria Peak, Tian Tan Buddha, Victoria Harbour. Tokyo is famous for Tokyo Tower, Shibuya Crossing, Senso-ji Temple.
Do Hong Kong and Tokyo have stock exchanges?
Yes. Hong Kong has the HKEX (Hong Kong Stock Exchange) and Tokyo has the TSE (Tokyo Stock 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 JST timezone?
Major cities in the JST timezone include Tokyo, Osaka, Yokohama, Nagoya, Sapporo, Kyoto, Kobe, Fukuoka.
What is the UTC offset for JST?
Japan Standard Time (JST) is at UTC+09:00.
What should I know about the JST timezone?
Japan does not observe daylight saving time. Tokyo is the most populous metropolitan area in the world.
When is it midnight in Hong Kong, what time is it in Tokyo?
When it is 12:00 AM (midnight) in Hong Kong (HKT), it is +1h later in Tokyo (JST).
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