London to Jakarta
+6hLondon
BSTSOURCEJakarta
WIBGreen rows indicate typical business hours (9 AM - 5 PM)
BST and WIB on the World Map
The map below highlights the BST (Greenwich Mean Time) and WIB (Western Indonesia 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.
WIB – Western Indonesia Time
UTC+07:00Western Indonesia Time (WIB, UTC+07:00) covers Java, Sumatra and West Kalimantan, including Jakarta.
- •Indonesia spans three time zones: WIB (UTC+07:00), WITA (UTC+08:00) and WIT (UTC+09:00).
- •Indonesia has not observed daylight saving time since 1964.
- •Jakarta is the largest city in Southeast Asia by population.
- •WIB shares the UTC+07:00 offset with Indochina Time.
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 Jakarta
WikipediaJakarta operates on Western Indonesia Time (WIB), UTC+7. As Southeast Asia's largest economy, Jakarta's IDX is a key emerging market exchange.
Indonesia has 3 time zones; Jakarta uses Western Indonesia Time (WIB).
Understanding the +6h Gap: London vs Jakarta
London runs on British Summer Time (BST) at UTC+01:00, currently observing daylight saving time. Jakarta runs on Western Indonesia Time (WIB) at UTC+07:00. That puts London 6 hours ahead of Jakarta — a difference of +6h at the current offsets.
In practice, when it is 9:00 AM in London it is 3:00 PM in Jakarta. Midnight in London is 6:00 AM in Jakarta.London observes daylight saving time while Jakarta does not, so the gap narrows or widens by an hour part of the year.
London to Jakarta time conversion table
| London (BST) | Jakarta (WIB) | Day |
|---|---|---|
| 12:00 AM | 6:00 AM | same day |
| 6:00 AM | 12:00 PM | same day |
| 7:00 AM | 1:00 PM | same day |
| 8:00 AM | 2:00 PM | same day |
| 9:00 AM | 3:00 PM | same day |
| 12:00 PM | 6:00 PM | same day |
| 3:00 PM | 9:00 PM | same day |
| 5:00 PM | 11:00 PM | same day |
| 6:00 PM | 12:00 AM | next day |
| 9:00 PM | 3:00 AM | next day |
Why people convert London to Jakarta time
- Scheduling a call from London to Jakarta: a 10:00 AM start in London lands at 4:00 PM in Jakarta, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both London and Jakarta are inside the 9-to-5 working day between 9:00 AM and 11:00 AM BST time (3:00 PM–5:00 PM WIB). That is roughly 2 hours of usable overlap.
- Watching a live event or market open: London viewers need 3:00 PM in Jakarta to catch a 9:00 AM start there, and 6:00 PM if the event is anchored to London.
- Always state the zone abbreviation, not just the hour. "3:00 PM BST" is unambiguous; "3 PM" across a +6h gap is not.
- Block 9:00 AM–11:00 AM BST as the recurring meeting window if you work primarily from London and need Jakarta 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 +6h 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 WIB (Western Indonesia Time)
Western Indonesia Time (WIB, Waktu Indonesia Barat) is one of Indonesia's three time zones, fixed at UTC+07:00 all year. It covers Java, Sumatra, West Kalimantan and the provinces around them — home to Jakarta, the country's capital and largest city, plus Surabaya and Bandung. Indonesia does not observe daylight saving time, so WIB never shifts. WIB shares its UTC+07:00 offset with Indochina Time (ICT) and Christmas Island Time, but is a distinct zone covering the western half of the Indonesian archipelago. The country's other zones are WITA (UTC+08:00) in the centre and WIT (UTC+09:00) in the east.
Best time to call between London and Jakarta
Both London and Jakarta sit inside the 9 AM – 5 PM working day between 9:00 AM–11:00 AM BST, which is 3:00 PM–5:00 PM WIB. That gives roughly 2 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
London and Jakarta overlap for about 2 hours during the working day — enough for meetings if you avoid the edges of the window.
London is 6 hours ahead of Jakarta (BST UTC+01:00 → WIB UTC+07:00). The shared working window is 9:00 AM–11:00 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
Jakarta
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 Jakarta?
London (BST, UTC+01:00) is 6 hours ahead of Jakarta (WIB, UTC+07:00). The gap is currently +6h.
How do I convert London time to Jakarta time?
Add +6h to London local time. For example, 9:00 AM in London is 3:00 PM in Jakarta.
What time is it in Jakarta right now?
Jakarta uses WIB at UTC+07:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +6h offset from London.
What is the best time to call Jakarta from London?
Call between 9:00 AM and 11:00 AM BST — that maps to 3:00 PM–5:00 PM WIB and keeps both parties inside the working day.
Which is ahead, London or Jakarta?
London is 6 hours ahead of Jakarta. When it is 12:00 PM in London it is 6:00 PM in Jakarta.
Do London and Jakarta use different time zones?
London (UK) uses BST at UTC+01:00, while Jakarta (Indonesia) uses WIB at UTC+07:00. The IANA identifiers are Europe/London and Asia/Jakarta.
Does daylight saving time affect the London–Jakarta difference?
Yes at the moment: London is on daylight saving time and Jakarta is not, so the +6h 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 Jakarta?
Not normally. The +6h gap only pushes the date over for late-evening times.
What is the time difference between London and Jakarta?
Jakarta is +6h 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 Jakarta in?
Jakarta operates on Western Indonesia Time (WIB), UTC+7. As Southeast Asia's largest economy, Jakarta's IDX is a key emerging market exchange.
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 Jakarta?
Standard business hours in Jakarta are 8:00 AM - 5:00 PM WIB.
What is the best time to schedule a call between London and Jakarta?
The best overlap for a call is when both cities are in business hours. London works 9:00 AM - 5:00 PM GMT and Jakarta works 8:00 AM - 5:00 PM WIB (+6h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in London and Jakarta?
London uses GBP (£) while Jakarta uses IDR (Rp). Check current exchange rates when planning travel or business between these cities.
How do London and Jakarta compare in size?
London has a population of approximately 8.8 million (metro: 14.8 million), while Jakarta has approximately 10.5 million (metro: 34.5 million).
What are the major landmarks in London and Jakarta?
London is known for Big Ben, Tower Bridge, Buckingham Palace. Jakarta is famous for Monas, Istiqlal Mosque, Old Town (Kota Tua).
Do London and Jakarta have stock exchanges?
Yes. London has the LSE (London Stock Exchange) and Jakarta has the IDX (Indonesia Stock Exchange). The +6h 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 WIB timezone?
Major cities in the WIB timezone include Jakarta, Surabaya, Bandung, Medan, Palembang.
What is the UTC offset for WIB?
Western Indonesia Time (WIB) is at UTC+07:00.
What should I know about the WIB timezone?
Indonesia spans three time zones: WIB (UTC+07:00), WITA (UTC+08:00) and WIT (UTC+09:00). Indonesia has not observed daylight saving time since 1964.
When is it midnight in London, what time is it in Jakarta?
When it is 12:00 AM (midnight) in London (GMT), it is +6h later in Jakarta (WIB).
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