Jakarta to London
-6hJakarta
WIBSOURCELondon
BSTGreen rows indicate typical business hours (9 AM - 5 PM)
WIB and BST on the World Map
The map below highlights the WIB (Western Indonesia Time) and BST (Greenwich Mean Time) timezone regions across the globe.
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.
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.
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).
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.
Jakarta vs London: Offsets, DST and Best Call Times
Jakarta runs on Western Indonesia Time (WIB) at UTC+07:00. London runs on British Summer Time (BST) at UTC+01:00, also currently on daylight saving time. That puts Jakarta 6 hours behind London — a difference of -6h at the current offsets.
In practice, when it is 9:00 AM in Jakarta it is 3:00 AM in London. Midnight in Jakarta is 6:00 PM in London.London observes daylight saving time while Jakarta does not, so the gap narrows or widens by an hour part of the year.
Jakarta to London time conversion table
| Jakarta (WIB) | London (BST) | Day |
|---|---|---|
| 12:00 AM | 6:00 PM | previous day |
| 6:00 AM | 12:00 AM | same day |
| 7:00 AM | 1:00 AM | same day |
| 8:00 AM | 2:00 AM | same day |
| 9:00 AM | 3:00 AM | same day |
| 12:00 PM | 6:00 AM | same day |
| 3:00 PM | 9:00 AM | same day |
| 5:00 PM | 11:00 AM | same day |
| 6:00 PM | 12:00 PM | same day |
| 9:00 PM | 3:00 PM | same day |
Why people convert Jakarta to London time
- Scheduling a call from Jakarta to London: a 10:00 AM start in Jakarta lands at 4:00 AM in London, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Jakarta and London are inside the 9-to-5 working day between 3:00 PM and 5:00 PM WIB time (9:00 AM–11:00 AM BST). That is roughly 2 hours of usable overlap.
- Booking travel or deliveries: tracking London local time against Jakarta keeps pickup windows and arrival estimates honest across the -6h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM WIB" is unambiguous; "3 PM" across a -6h gap is not.
- Block 3:00 PM–5:00 PM WIB as the recurring meeting window if you work primarily from Jakarta and need London colleagues present.
- London: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.
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.
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.
Best time to call between Jakarta and London
Both Jakarta and London sit inside the 9 AM – 5 PM working day between 3:00 PM–5:00 PM WIB, which is 9:00 AM–11:00 AM BST. That gives roughly 2 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Jakarta and London overlap for about 2 hours during the working day — enough for meetings if you avoid the edges of the window.
Jakarta is 6 hours behind London (WIB UTC+07:00 → BST UTC+01:00). The shared working window is 3:00 PM–5:00 PM WIB. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Jakarta
Does not observe DST
London
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
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 Jakarta and London?
Jakarta (WIB, UTC+07:00) is 6 hours behind London (BST, UTC+01:00). The gap is currently -6h.
How do I convert Jakarta time to London time?
Add -6h to Jakarta local time. For example, 9:00 AM in Jakarta is 3:00 AM in London.
What time is it in London right now?
London uses BST at UTC+01:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -6h offset from Jakarta.
What is the best time to call London from Jakarta?
Call between 3:00 PM and 5:00 PM WIB — that maps to 9:00 AM–11:00 AM BST and keeps both parties inside the working day.
Which is behind, Jakarta or London?
Jakarta is 6 hours behind London. When it is 12:00 PM in Jakarta it is 6:00 AM in London.
Do Jakarta and London use different time zones?
Jakarta (Indonesia) uses WIB at UTC+07:00, while London (UK) uses BST at UTC+01:00. The IANA identifiers are Asia/Jakarta and Europe/London.
Does daylight saving time affect the Jakarta–London 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 Jakarta's time zone?
WIB also covers Jakarta, Surabaya, Bandung, Medan, Palembang.
Which countries use WIB, Jakarta's zone?
WIB is used in Indonesia (Java, Sumatra, West Kalimantan).
Is there a day difference between Jakarta and London?
Not normally. The -6h gap only pushes the date over the previous day.
What is the time difference between Jakarta and London?
London is -6h from Jakarta.
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 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 are the business hours in Jakarta?
Standard business hours in Jakarta are 8:00 AM - 5:00 PM WIB.
What are the business hours in London?
Standard business hours in London are 9:00 AM - 5:00 PM GMT.
What is the best time to schedule a call between Jakarta and London?
The best overlap for a call is when both cities are in business hours. Jakarta works 8:00 AM - 5:00 PM WIB and London works 9:00 AM - 5:00 PM GMT (-6h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Jakarta and London?
Jakarta uses IDR (Rp) while London uses GBP (£). Check current exchange rates when planning travel or business between these cities.
How do Jakarta and London compare in size?
Jakarta has a population of approximately 10.5 million (metro: 34.5 million), while London has approximately 8.8 million (metro: 14.8 million).
What are the major landmarks in Jakarta and London?
Jakarta is known for Monas, Istiqlal Mosque, Old Town (Kota Tua). London is famous for Big Ben, Tower Bridge, Buckingham Palace.
Do Jakarta and London have stock exchanges?
Yes. Jakarta has the IDX (Indonesia Stock Exchange) and London has the LSE (London Stock Exchange). The -6h time difference affects trading hour overlaps between these exchanges.
Which countries use WIB (Western Indonesia Time)?
WIB is used in Indonesia (Java, Sumatra, West Kalimantan).
Does WIB observe daylight saving time?
No, WIB does not observe daylight saving time and remains at UTC+07:00 year-round.
What are some interesting facts about WIB?
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.
Which cities are in the GMT timezone?
Major cities in the GMT timezone include London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar.
What is the UTC offset for GMT?
Greenwich Mean Time (GMT) is at UTC+00:00. During daylight saving time, it shifts to BST.
What should I know about the GMT timezone?
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.
When is it midnight in Jakarta, what time is it in London?
When it is 12:00 AM (midnight) in Jakarta (WIB), it is -6h later in London (GMT).
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