London to Kathmandu
+4h 45mLondon
BSTSOURCEKathmandu
NPTGreen rows indicate typical business hours (9 AM - 5 PM)
BST and NPT on the World Map
The map below highlights the BST (Greenwich Mean Time) and NPT (Nepal 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.
NPT – Nepal Time
UTC+05:45Nepal Time (NPT, UTC+05:45) is the time zone for Nepal — one of the few offsets in the world set on a 45-minute increment.
- •Nepal Time is UTC+05:45 — a 45-minute offset, not a whole or half hour.
- •The 45-minute offset was adopted in 1986 to match Kathmandu's solar time.
- •Nepal does not observe daylight saving time.
- •Nepal is 15 minutes ahead of India, despite sharing a long open border.
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 Kathmandu
WikipediaKathmandu operates on Nepal Time (NPT), one of the world's unique UTC+5:45 timezones. This 15-minute offset from India makes Nepal time distinctive for global coordination.
Nepal Time (NPT) is one of only three timezones offset by 45 minutes (UTC+5:45).
Comparing Time Zones: London and Kathmandu
London runs on British Summer Time (BST) at UTC+01:00, currently observing daylight saving time. Kathmandu runs on Nepal Time (NPT) at UTC+05:45. That puts London 4 hours 45 minutes ahead of Kathmandu — a difference of +4h 45m at the current offsets.
In practice, when it is 9:00 AM in London it is 1:45 PM in Kathmandu. Midnight in London is 4:45 AM in Kathmandu.London observes daylight saving time while Kathmandu does not, so the gap narrows or widens by an hour part of the year.
London to Kathmandu time conversion table
| London (BST) | Kathmandu (NPT) | Day |
|---|---|---|
| 12:00 AM | 4:45 AM | same day |
| 6:00 AM | 10:45 AM | same day |
| 7:00 AM | 11:45 AM | same day |
| 8:00 AM | 12:45 PM | same day |
| 9:00 AM | 1:45 PM | same day |
| 12:00 PM | 4:45 PM | same day |
| 3:00 PM | 7:45 PM | same day |
| 5:00 PM | 9:45 PM | same day |
| 6:00 PM | 10:45 PM | same day |
| 9:00 PM | 1:45 AM | next day |
Why people convert London to Kathmandu time
- Scheduling a call from London to Kathmandu: a 10:00 AM start in London lands at 2:45 PM in Kathmandu, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both London and Kathmandu are inside the 9-to-5 working day between 9:00 AM and 12:15 PM BST time (1:45 PM–5:00 PM NPT). That is roughly 3 hours 15 minutes of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in London is 12:45 AM in Kathmandu makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM BST" is unambiguous; "3 PM" across a +4h 45m gap is not.
- Block 9:00 AM–12:15 PM BST as the recurring meeting window if you work primarily from London and need Kathmandu 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 +4h 45m 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 NPT (Nepal Time)
Nepal Time (NPT) runs at UTC+05:45, one of only a handful of time zones worldwide that are not a whole or half hour from UTC. Nepal set its offset to 5 hours 45 minutes ahead of UTC in 1986 to mark the country's position between the 75°E and 90°E meridians; Kathmandu's solar time sits just over 5 hours 41 minutes ahead of Greenwich, so the 45-minute offset tracks the sun more closely than either 5:30 or 6:00 would. Nepal does not observe daylight saving time, so NPT is fixed all year. The offset makes Nepal 15 minutes ahead of India Standard Time (UTC+05:30) and 2 hours 15 minutes ahead of Dubai (UTC+04:00).
Best time to call between London and Kathmandu
Both London and Kathmandu sit inside the 9 AM – 5 PM working day between 9:00 AM–12:15 PM BST, which is 1:45 PM–5:00 PM NPT. That gives roughly 3 hours and 15 minutes of shared time — the safest window for a live call or meeting.
Business hours overlap
London and Kathmandu overlap for about 3 hours during the working day — enough for meetings if you avoid the edges of the window.
London is 4 hours 45 minutes ahead of Kathmandu (BST UTC+01:00 → NPT UTC+05:45). The shared working window is 9:00 AM–12:15 PM 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
Kathmandu
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 Kathmandu?
London (BST, UTC+01:00) is 4 hours 45 minutes ahead of Kathmandu (NPT, UTC+05:45). The gap is currently +4h 45m.
How do I convert London time to Kathmandu time?
Add +4h 45m to London local time. For example, 9:00 AM in London is 1:45 PM in Kathmandu.
What time is it in Kathmandu right now?
Kathmandu uses NPT at UTC+05:45. Use the live converter at the top of this page — it updates in real time and already accounts for the +4h 45m offset from London.
What is the best time to call Kathmandu from London?
Call between 9:00 AM and 12:15 PM BST — that maps to 1:45 PM–5:00 PM NPT and keeps both parties inside the working day.
Which is ahead, London or Kathmandu?
London is 4 hours 45 minutes ahead of Kathmandu. When it is 12:00 PM in London it is 4:45 PM in Kathmandu.
Do London and Kathmandu use different time zones?
London (UK) uses BST at UTC+01:00, while Kathmandu (Nepal) uses NPT at UTC+05:45. The IANA identifiers are Europe/London and Asia/Kathmandu.
Does daylight saving time affect the London–Kathmandu difference?
Yes at the moment: London is on daylight saving time and Kathmandu is not, so the +4h 45m 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 Kathmandu?
Not normally. The +4h 45m gap only pushes the date over for late-evening times.
What is the time difference between London and Kathmandu?
Kathmandu is +4h 45m 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 Kathmandu in?
Kathmandu operates on Nepal Time (NPT), one of the world's unique UTC+5:45 timezones. This 15-minute offset from India makes Nepal time distinctive for global coordination.
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 Kathmandu?
Standard business hours in Kathmandu are 10:00 AM - 5:00 PM NPT.
What is the best time to schedule a call between London and Kathmandu?
The best overlap for a call is when both cities are in business hours. London works 9:00 AM - 5:00 PM GMT and Kathmandu works 10:00 AM - 5:00 PM NPT (+4h 45m difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in London and Kathmandu?
London uses GBP (£) while Kathmandu uses NPR (रू). Check current exchange rates when planning travel or business between these cities.
How do London and Kathmandu compare in size?
London has a population of approximately 8.8 million (metro: 14.8 million), while Kathmandu has approximately 1.4 million (metro: 3.0 million).
What are the major landmarks in London and Kathmandu?
London is known for Big Ben, Tower Bridge, Buckingham Palace. Kathmandu is famous for Boudhanath Stupa, Swayambhunath, Durbar Square.
Do London and Kathmandu have stock exchanges?
Yes. London has the LSE (London Stock Exchange) and Kathmandu has the NEPSE (Nepal Stock Exchange). The +4h 45m 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 NPT timezone?
Major cities in the NPT timezone include Kathmandu, Pokhara, Lalitpur, Bharatpur, Biratnagar.
What is the UTC offset for NPT?
Nepal Time (NPT) is at UTC+05:45.
What should I know about the NPT timezone?
Nepal Time is UTC+05:45 — a 45-minute offset, not a whole or half hour. The 45-minute offset was adopted in 1986 to match Kathmandu's solar time.
When is it midnight in London, what time is it in Kathmandu?
When it is 12:00 AM (midnight) in London (GMT), it is +4h 45m later in Kathmandu (NPT).
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