London to Singapore
+8hLondon
GMTSOURCESingapore
SGTGreen rows indicate typical business hours (9 AM - 5 PM)
GMT and SGT on the World Map
The map below highlights the GMT (Greenwich Mean Time) and SGT (Singapore Standard 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.
SGT – Singapore Standard Time
UTC+08:00Singapore Standard Time (SGT) is the time zone for Singapore, 8 hours ahead of UTC.
- •Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00).
- •Singapore does not observe daylight saving time.
- •The Singapore Exchange (SGX) operates on SGT.
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.
London was the first city to have an underground railway, opening in 1863.
About Singapore
WikipediaSingapore Standard Time (SGT) is 8 hours ahead of GMT. As Asia's leading financial hub, Singapore bridges business hours between Europe and Australia.
Singapore is one of only three surviving city-states in the world (along with Monaco and Vatican City).
Understanding the Time Gap: London vs Singapore
London, UK operates on the Greenwich Mean Time (UTC+00:00). Singapore, Singapore uses Singapore Standard Time (UTC+08:00).
The time difference between London and Singapore is 480 minutes (+8h). When it's noon in London, it's 08:00 PM in Singapore.
Why Convert London to Singapore Time?
The time difference of 8 hours between London and Singapore can significantly impact business operations and personal communication. By using this converter, you can easily find the overlapping business hours and schedule your interactions when both parties are available.
Best Practice: When proposing meeting times to someone in Singapore, offer a few options in their local time to show consideration for the 8-hour difference.
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 SGT (Singapore Standard Time)
Singapore Standard Time (SGT) is used in Singapore year-round. Singapore does not observe daylight saving time. Despite being geographically close to the UTC+07:00 zone, Singapore uses UTC+08:00 to align with major trading partners like China, Hong Kong, and Malaysia. Singapore is a major global financial hub.
Best Time to Call Between London and Singapore
If you want to reach someone in Singapore during standard business hours (9 AM – 5 PM SGT), the best time to call from London would be:
- Singapore 9:00 AM = London 01:00 AM
- Singapore 12:00 PM = London 04:00 AM
- Singapore 5:00 PM = London 09:00 AM
Business Hours Overlap
London and Singapore have a partial business hours overlap. The best window for meetings and calls is when both locations are in their working hours.
In conclusion, the +8h time shift from London to Singapore doesn't have to be a hurdle. With our interactive converter, you can easily find the perfect time to connect.
🕐 Daylight Saving Time Info
London
❄ Currently in Standard Time
Standard: UTC+00:00 · DST: UTC+01:00
Clocks spring forward on Sun, Mar 29, 2026
Singapore
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 Singapore?
Singapore is +8h 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 Singapore in?
Singapore Standard Time (SGT) is 8 hours ahead of GMT. As Asia's leading financial hub, Singapore bridges business hours between Europe and Australia.
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 Singapore?
Standard business hours in Singapore are 9:00 AM - 6:00 PM SGT.
What is the best time to schedule a call between London and Singapore?
The best overlap for a call is when both cities are in business hours. London works 9:00 AM - 5:00 PM GMT and Singapore works 9:00 AM - 6:00 PM SGT (+8h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in London and Singapore?
London uses GBP (£) while Singapore uses SGD (S$). Check current exchange rates when planning travel or business between these cities.
How do London and Singapore compare in size?
London has a population of approximately 8.8 million (metro: 14.8 million), while Singapore has approximately 5.5 million (metro: 5.9 million).
What are the major landmarks in London and Singapore?
London is known for Big Ben, Tower Bridge, Buckingham Palace. Singapore is famous for Marina Bay Sands, Gardens by the Bay, Merlion.
Do London and Singapore have stock exchanges?
Yes. London has the LSE (London Stock Exchange) and Singapore has the SGX (Singapore Exchange). The +8h 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 SGT timezone?
Major cities in the SGT timezone include Singapore.
What is the UTC offset for SGT?
Singapore Standard Time (SGT) is at UTC+08:00.
What should I know about the SGT timezone?
Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00). Singapore does not observe daylight saving time.
When is it midnight in London, what time is it in Singapore?
When it is 12:00 AM (midnight) in London (GMT), it is +8h later in Singapore (SGT).
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