London to HKT
+7hLondon
BSTSOURCEHKT
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.
London to HKT Time Difference – Complete Guide
London runs on British Summer Time (BST) at UTC+01:00, currently observing daylight saving time. HKT runs on Hong Kong Time (HKT) at UTC+08:00. That puts London 7 hours ahead of HKT — a difference of +7h at the current offsets.
In practice, when it is 9:00 AM in London it is 4:00 PM in HKT. Midnight in London is 7:00 AM in HKT.London observes daylight saving time while HKT does not, so the gap narrows or widens by an hour part of the year.
London to HKT time conversion table
| London (BST) | HKT (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 HKT time
- Scheduling a call from London to HKT: a 10:00 AM start in London lands at 5:00 PM in HKT, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both London and HKT 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.
- Coordinating a London-based team with HKT 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 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 HKT 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 HKT
Both London and HKT 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 HKT 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 HKT (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
HKT
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 HKT?
London (BST, UTC+01:00) is 7 hours ahead of HKT (HKT, UTC+08:00). The gap is currently +7h.
How do I convert London time to HKT time?
Add +7h to London local time. For example, 9:00 AM in London is 4:00 PM in HKT.
What time is it in HKT right now?
HKT 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 HKT 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 HKT?
London is 7 hours ahead of HKT. When it is 12:00 PM in London it is 7:00 PM in HKT.
Do London and HKT use different time zones?
London (UK) uses BST at UTC+01:00, while HKT uses HKT at UTC+08:00. The IANA identifiers are Europe/London and Asia/Hong_Kong.
Does daylight saving time affect the London–HKT difference?
Yes at the moment: London is on daylight saving time and HKT 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 HKT?
Not normally. The +7h gap only pushes the date over for late-evening times.
What is the time difference between London and HKT?
HKT 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 HKT in?
HKT operates on its local timezone.
What are the business hours in London?
Standard business hours in London are 9:00 AM - 5:00 PM GMT.
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 HKT?
When it is 12:00 AM (midnight) in London (GMT), it is +7h later in HKT (HKT).
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