London to Hong Kong
+7hLondon
BSTSOURCEHong Kong
HKTGreen rows indicate typical business hours (9 AM - 5 PM)
BST and HKT on the World Map
The map below highlights the BST (Greenwich Mean Time) and HKT (Hong Kong Time) timezone regions across the globe.
GMT – Greenwich Mean Time
UTC+00:00Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.
- •GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
- •The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
- •GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
- •Iceland uses GMT year-round and never observes daylight saving time.
- •The UK switches from GMT to BST (British Summer Time) in late March each year.
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 London
WikipediaLondon, where Greenwich Mean Time (GMT) originates, is the world's leading financial center alongside New York. The city bridges European and American business hours.
Big Ben is actually the name of the bell inside the Elizabeth Tower, not the tower itself.
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.
London vs Hong Kong: Offsets, DST and Best Call Times
London runs on British Summer Time (BST) at UTC+01:00, currently observing daylight saving time. Hong Kong runs on Hong Kong Standard Time (HKT) at UTC+08:00. That puts London 7 hours ahead of Hong Kong — a difference of +7h at the current offsets.
In practice, when it is 9:00 AM in London it is 4:00 PM in Hong Kong. Midnight in London is 7:00 AM in Hong Kong.London observes daylight saving time while Hong Kong does not, so the gap narrows or widens by an hour part of the year.
London to Hong Kong time conversion table
| London (BST) | Hong Kong (HKT) | Day |
|---|---|---|
| 12:00 AM | 7:00 AM | same day |
| 6:00 AM | 1:00 PM | same day |
| 7:00 AM | 2:00 PM | same day |
| 8:00 AM | 3:00 PM | same day |
| 9:00 AM | 4:00 PM | same day |
| 12:00 PM | 7:00 PM | same day |
| 3:00 PM | 10:00 PM | same day |
| 5:00 PM | 12:00 AM | next day |
| 6:00 PM | 1:00 AM | next day |
| 9:00 PM | 4:00 AM | next day |
Why people convert London to Hong Kong time
- Scheduling a call from London to Hong Kong: a 10:00 AM start in London lands at 5:00 PM in Hong Kong, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both London and Hong Kong are inside the 9-to-5 working day between 9:00 AM and 10:00 AM BST time (4:00 PM–5:00 PM HKT). That is roughly 1 hours of usable overlap.
- Booking travel or deliveries: tracking Hong Kong local time against London keeps pickup windows and arrival estimates honest across the +7h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM BST" is unambiguous; "3 PM" across a +7h gap is not.
- Block 9:00 AM–10:00 AM BST as the recurring meeting window if you work primarily from London and need Hong Kong colleagues present.
- London: Clocks fall back on Sun, Oct 25, 2026. Re-check this page after that date because the offset changes and so does the +7h gap.
About GMT (Greenwich Mean Time)
Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.
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 London and Hong Kong
Both London and Hong Kong sit inside the 9 AM – 5 PM working day between 9:00 AM–10:00 AM BST, which is 4:00 PM–5:00 PM HKT. That gives roughly 1 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
London and Hong Kong overlap for only 60 minutes (9:00 AM–10:00 AM BST), so meetings have to be booked precisely.
London is 7 hours ahead of Hong Kong (BST UTC+01:00 → HKT UTC+08:00). The shared working window is 9:00 AM–10:00 AM BST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
London
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
Hong Kong
Does not observe DST
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 London and Hong Kong?
London (BST, UTC+01:00) is 7 hours ahead of Hong Kong (HKT, UTC+08:00). The gap is currently +7h.
How do I convert London time to Hong Kong time?
Add +7h to London local time. For example, 9:00 AM in London is 4:00 PM 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 +7h offset from London.
What is the best time to call Hong Kong from London?
Call between 9:00 AM and 10:00 AM BST — that maps to 4:00 PM–5:00 PM HKT and keeps both parties inside the working day.
Which is ahead, London or Hong Kong?
London is 7 hours ahead of Hong Kong. When it is 12:00 PM in London it is 7:00 PM in Hong Kong.
Do London and Hong Kong use different time zones?
London (UK) uses BST at UTC+01:00, while Hong Kong (Hong Kong) uses HKT at UTC+08:00. The IANA identifiers are Europe/London and Asia/Hong_Kong.
Does daylight saving time affect the London–Hong Kong difference?
Yes at the moment: London is on daylight saving time and Hong Kong is not, so the +7h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share London's time zone?
BST also covers London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar and 5 more.
Which countries use BST, London's zone?
BST is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, Mali, Mauritania and 7 more.
Is there a day difference between London and Hong Kong?
Not normally. The +7h gap only pushes the date over for late-evening times.
What is the time difference between London and Hong Kong?
Hong Kong is +7h from London.
What timezone is London in?
London, where Greenwich Mean Time (GMT) originates, is the world's leading financial center alongside New York. The city bridges European and American business hours.
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 London?
Standard business hours in London are 9:00 AM - 5:00 PM GMT.
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 London and Hong Kong?
The best overlap for a call is when both cities are in business hours. London works 9:00 AM - 5:00 PM GMT and Hong Kong works 9:00 AM - 6:00 PM HKT (+7h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in London and Hong Kong?
London uses GBP (£) while Hong Kong uses HKD (HK$). Check current exchange rates when planning travel or business between these cities.
How do London and Hong Kong compare in size?
London has a population of approximately 8.8 million (metro: 14.8 million), while Hong Kong has approximately 7.5 million (metro: 7.5 million).
What are the major landmarks in London and Hong Kong?
London is known for Big Ben, Tower Bridge, Buckingham Palace. Hong Kong is famous for Victoria Peak, Tian Tan Buddha, Victoria Harbour.
Do London and Hong Kong have stock exchanges?
Yes. London has the LSE (London Stock Exchange) and Hong Kong has the HKEX (Hong Kong Stock Exchange). The +7h time difference affects trading hour overlaps between these exchanges.
Which countries use GMT (Greenwich Mean Time)?
GMT is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, and 9 more countries.
Does GMT observe daylight saving time?
Yes, GMT switches to BST during summer months.
What are some interesting facts about GMT?
GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
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 London, what time is it in Hong Kong?
When it is 12:00 AM (midnight) in London (GMT), it is +7h later in Hong Kong (HKT).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More London time conversions
- london to gmt
- london to bst
- london to uk
- london to dublin
- london to paris
- london to berlin
- london to amsterdam
- london to madrid
- london to rome
- london to zurich
- london to stockholm
- london to moscow
- london to istanbul
- london to lisbon
- london to warsaw
- london to new york
- london to dubai
- london to tokyo
- london to singapore
- london to sydney
- london to los angeles
- london to delhi
- london to mumbai
- london to toronto
- london to kathmandu
- new york to london
- dubai to london
- tokyo to london
- singapore to london
- sydney to london
- los angeles to london
- paris to london
- delhi to london
- mumbai to london
- berlin to london
See every conversion from London →·See every conversion from Hong Kong →