Karachi to London
-4hKarachi
PKTSOURCELondon
GMTGreen rows indicate typical business hours (9 AM - 5 PM)
PKT and GMT on the World Map
The map below highlights the PKT (Pakistan Standard Time) and GMT (Greenwich Mean Time) timezone regions across the globe.
PKT – Pakistan Standard Time
UTC+05:00Pakistan Standard Time (PKT) is the time zone for Pakistan, 5 hours ahead of UTC.
- •Pakistan does not observe daylight saving time.
- •Karachi is one of the world's most populous cities.
- •PKT is the same offset as Uzbekistan (UZT) and Yekaterinburg (YEKT).
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 Karachi
WikipediaKarachi operates on Pakistan Standard Time (PKT), UTC+5. As Pakistan's financial hub and largest port city, Karachi time drives South Asian commerce.
Karachi is Pakistan's largest city and was the first capital from 1947-1958.
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.
Greenwich Mean Time (GMT) is defined by the Prime Meridian at the Royal Observatory in Greenwich, London.
Karachi to London Time Difference – Complete Guide
Karachi, Pakistan operates on the Pakistan Standard Time (UTC+05:00). London, UK uses Greenwich Mean Time (UTC+00:00).
The time difference between Karachi and London is 240 minutes (+4h). When it's noon in Karachi, it's 08:00 AM in London.
Why Convert Karachi to London Time?
When planning a meeting or scheduling a call between Karachi and London, it's crucial to account for the 4-hour time difference. Whether you're coordinating with remote teams, calling family, or setting up an international conference, knowing the exact time in London helps avoid missed connections.
Remember: Daylight Saving Time changes can affect the time difference between Karachi and London. Always double-check the current offset before scheduling important events.
About PKT (Pakistan Standard Time)
Pakistan Standard Time (PKT) is the time zone used throughout Pakistan. PKT does not observe daylight saving time. Pakistan is the 5th most populous country in the world.
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 Karachi and London
If you want to reach someone in London during standard business hours (9 AM – 5 PM GMT), the best time to call from Karachi would be:
- London 9:00 AM = Karachi 01:00 PM
- London 12:00 PM = Karachi 04:00 PM
- London 5:00 PM = Karachi 09:00 PM
Business Hours Overlap
Karachi and London have a partial business hours overlap. The best window for meetings and calls is when both locations are in their working hours.
In summary, the -4h time difference between Karachi and London means you need to plan carefully. Use this page as your go-to reference for quick and accurate time conversions.
🕐 Daylight Saving Time Info
Karachi
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 Karachi and London?
London is -4h from Karachi.
What timezone is Karachi in?
Karachi operates on Pakistan Standard Time (PKT), UTC+5. As Pakistan's financial hub and largest port city, Karachi time drives South Asian commerce.
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 Karachi?
Standard business hours in Karachi are 9:00 AM - 5:00 PM PKT.
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 Karachi and London?
The best overlap for a call is when both cities are in business hours. Karachi works 9:00 AM - 5:00 PM PKT and London works 9:00 AM - 5:00 PM GMT (-4h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Karachi and London?
Karachi uses PKR (₨) while London uses GBP (£). Check current exchange rates when planning travel or business between these cities.
How do Karachi and London compare in size?
Karachi has a population of approximately 14.9 million (metro: 16.5 million), while London has approximately 8.8 million (metro: 14.8 million).
What are the major landmarks in Karachi and London?
Karachi is known for Quaid-e-Azam's Mausoleum, Mohatta Palace, Clifton Beach. London is famous for Big Ben, Tower Bridge, Buckingham Palace.
Do Karachi and London have stock exchanges?
Yes. Karachi has the PSX (Pakistan Stock Exchange) and London has the LSE (London Stock Exchange). The -4h time difference affects trading hour overlaps between these exchanges.
Which countries use PKT (Pakistan Standard Time)?
PKT is used in Pakistan.
Does PKT observe daylight saving time?
No, PKT does not observe daylight saving time and remains at UTC+05:00 year-round.
What are some interesting facts about PKT?
Pakistan does not observe daylight saving time. Karachi is one of the world's most populous cities.
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 Karachi, what time is it in London?
When it is 12:00 AM (midnight) in Karachi (PKT), it is -4h later in London (GMT).
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