Tokyo to Hong Kong
-1hTokyo
JSTSOURCEHong Kong
HKTGreen rows indicate typical business hours (9 AM - 5 PM)
JST and HKT on the World Map
The map below highlights the JST (Japan Standard Time) and HKT (Hong Kong Time) timezone regions across the globe.
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.
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 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.
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.
Time Conversion Guide: Tokyo to Hong Kong
Tokyo runs on Japan Standard Time (JST) at UTC+09:00. Hong Kong runs on Hong Kong Standard Time (HKT) at UTC+08:00. That puts Tokyo 1 hour behind Hong Kong — a difference of -1h at the current offsets.
In practice, when it is 9:00 AM in Tokyo it is 8:00 AM in Hong Kong. Midnight in Tokyo is 11:00 PM in Hong Kong. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Tokyo to Hong Kong time conversion table
| Tokyo (JST) | Hong Kong (HKT) | Day |
|---|---|---|
| 12:00 AM | 11:00 PM | previous day |
| 6:00 AM | 5:00 AM | same day |
| 7:00 AM | 6:00 AM | same day |
| 8:00 AM | 7:00 AM | same day |
| 9:00 AM | 8:00 AM | same day |
| 12:00 PM | 11:00 AM | same day |
| 3:00 PM | 2:00 PM | same day |
| 5:00 PM | 4:00 PM | same day |
| 6:00 PM | 5:00 PM | same day |
| 9:00 PM | 8:00 PM | same day |
Why people convert Tokyo to Hong Kong time
- Scheduling a call from Tokyo to Hong Kong: a 10:00 AM start in Tokyo lands at 9:00 AM in Hong Kong, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Tokyo and Hong Kong are inside the 9-to-5 working day between 10:00 AM and 5:00 PM JST time (9:00 AM–4:00 PM HKT). That is roughly 7 hours of usable overlap.
- Coordinating a Tokyo-based team with Hong Kong 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 JST" is unambiguous; "3 PM" across a -1h gap is not.
- Block 10:00 AM–5:00 PM JST as the recurring meeting window if you work primarily from Tokyo and need Hong Kong colleagues present.
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.
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 Tokyo and Hong Kong
Both Tokyo and Hong Kong sit inside the 9 AM – 5 PM working day between 10:00 AM–5:00 PM JST, which is 9:00 AM–4:00 PM HKT. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Tokyo and Hong Kong share 7 hours of working-hours overlap (10:00 AM–5:00 PM JST), so scheduling a live meeting is straightforward.
Tokyo is 1 hour behind Hong Kong (JST UTC+09:00 → HKT UTC+08:00). The shared working window is 10:00 AM–5:00 PM JST. 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 Tokyo and Hong Kong?
Tokyo (JST, UTC+09:00) is 1 hour behind Hong Kong (HKT, UTC+08:00). The gap is currently -1h.
How do I convert Tokyo time to Hong Kong time?
Add -1h to Tokyo local time. For example, 9:00 AM in Tokyo is 8:00 AM in Hong Kong.
What time is it in Hong Kong right now?
Hong Kong 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 Tokyo.
What is the best time to call Hong Kong from Tokyo?
Call between 10:00 AM and 5:00 PM JST — that maps to 9:00 AM–4:00 PM HKT and keeps both parties inside the working day.
Which is behind, Tokyo or Hong Kong?
Tokyo is 1 hour behind Hong Kong. When it is 12:00 PM in Tokyo it is 11:00 AM in Hong Kong.
Do Tokyo and Hong Kong use different time zones?
Tokyo (Japan) uses JST at UTC+09:00, while Hong Kong (Hong Kong) uses HKT at UTC+08:00. The IANA identifiers are Asia/Tokyo and Asia/Hong_Kong.
Does daylight saving time affect the Tokyo–Hong Kong difference?
Neither zone observes daylight saving time, so the -1h offset between Tokyo and Hong Kong is fixed all year.
Which other cities share Tokyo's time zone?
JST also covers Tokyo, Osaka, Yokohama, Nagoya, Sapporo, Kyoto, Kobe, Fukuoka and 1 more.
Which countries use JST, Tokyo's zone?
JST is used in Japan.
Is there a day difference between Tokyo and Hong Kong?
Not normally. The -1h gap only pushes the date over the previous day.
What is the time difference between Tokyo and Hong Kong?
Hong Kong is -1h from Tokyo.
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 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 are the business hours in Tokyo?
Standard business hours in Tokyo are 9:00 AM - 6:00 PM JST.
What are the business hours in Hong Kong?
Standard business hours in Hong Kong are 9:00 AM - 6:00 PM HKT.
What is the best time to schedule a call between Tokyo and Hong Kong?
The best overlap for a call is when both cities are in business hours. Tokyo works 9:00 AM - 6:00 PM JST and Hong Kong works 9:00 AM - 6:00 PM HKT (-1h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Tokyo and Hong Kong?
Tokyo uses JPY (¥) while Hong Kong uses HKD (HK$). Check current exchange rates when planning travel or business between these cities.
How do Tokyo and Hong Kong compare in size?
Tokyo has a population of approximately 14 million (metro: 37.4 million), while Hong Kong has approximately 7.5 million (metro: 7.5 million).
What are the major landmarks in Tokyo and Hong Kong?
Tokyo is known for Tokyo Tower, Shibuya Crossing, Senso-ji Temple. Hong Kong is famous for Victoria Peak, Tian Tan Buddha, Victoria Harbour.
Do Tokyo and Hong Kong have stock exchanges?
Yes. Tokyo has the TSE (Tokyo Stock Exchange) and Hong Kong has the HKEX (Hong Kong Stock Exchange). The -1h time difference affects trading hour overlaps between these exchanges.
Which countries use JST (Japan Standard Time)?
JST is used in Japan.
Does JST observe daylight saving time?
No, JST does not observe daylight saving time and remains at UTC+09:00 year-round.
What are some interesting facts about JST?
Japan does not observe daylight saving time. Tokyo is the most populous metropolitan area in the world.
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 Tokyo, what time is it in Hong Kong?
When it is 12:00 AM (midnight) in Tokyo (JST), it is -1h later in Hong Kong (HKT).
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