Does it account for Daylight Saving Time?

Yes, our converter uses the IANA timezone database, which includes all current DST rules for every timezone in the world.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

Can I compare multiple timezones at once?

Yes, you can add multiple cities or timezones and see the equivalent times side by side.

How many timezones are there in the world?

There are 38 distinct UTC offsets in use, ranging from UTC-12 to UTC+14. This includes half-hour (UTC+5:30 India, UTC+9:30 Australia) and 45-minute offsets (UTC+5:45 Nepal, UTC+8:45 Australia).

What is the International Date Line?

The International Date Line (IDL) runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you gain a day; crossing eastward, you lose a day.

Why do some timezones have 30 or 45 minute offsets?

Countries chose offsets that best matched their solar noon. India uses UTC+5:30 and Nepal uses UTC+5:45 because standard hourly offsets didn't align well with their geography.

Which country has the most timezones?

France has the most (12 timezones) due to overseas territories. Russia spans 11 timezones. The US has 6 (including Hawaii and Alaska).

United Kingdom to Kathmandu

+4h 45m

United Kingdom

BSTSOURCE

UTC+01:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Kathmandu

NPT

Nepal · UTC+05:45

HH04

MM45

16:45 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

United Kingdom

Kathmandu

12:00 AM

4:45 AM

2:00 AM

6:45 AM

4:00 AM

8:45 AM

6:00 AM

10:45 AM

8:00 AM

12:45 PM

10:00 AM

2:45 PM

12:00 PM

4:45 PM

2:00 PM

6:45 PM

4:00 PM

8:45 PM

6:00 PM

10:45 PM

8:00 PM

12:45 AM+1

10:00 PM

2:45 AM+1

Green 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.

BST Zone

→

NPT Zone

Explore all world timezones interactively →

GMT – Greenwich Mean Time

UTC+00:00

Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.

Countries in GMT

United KingdomIrelandIcelandPortugal (mainland)GhanaSenegalMaliMauritaniaGambiaGuineaSierra LeoneLiberiaIvory CoastBurkina FasoMorocco (historically)

Major Cities in GMT

LondonDublinLisbonAccraReykjavikEdinburghCasablancaDakarBamakoAbidjanConakryFreetownMonrovia

Key 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.
•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.

Daylight Saving:Yes – switches to BST

Learn more about GMT on Wikipedia

NPT – Nepal Time

UTC+05:45

Nepal 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.

Countries in NPT

Nepal

Major Cities in NPT

KathmanduPokharaLalitpurBharatpurBiratnagar

Key Facts about NPT

•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.

Daylight Saving:No – UTC+05:45 year-round

Learn more about NPT on Wikipedia

About Kathmandu

Wikipedia

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.

Population:1.4 million

Metro:3.0 million

Business Hours:10:00 AM - 5:00 PM NPT

Currency:NPR (रू)

Stock Exchange:NEPSE (Nepal Stock Exchange)

Key Landmarks

Boudhanath StupaSwayambhunathDurbar SquarePashupatinath TempleGarden of Dreams

Did You Know?

Nepal Time (NPT) is one of only three timezones offset by 45 minutes (UTC+5:45).

Learn more about NPT timezone →

Everything You Need to Know About United Kingdom and Kathmandu Time

United Kingdom 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 United Kingdom 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 United Kingdom it is 1:45 PM in Kathmandu. Midnight in United Kingdom is 4:45 AM in Kathmandu.United Kingdom observes daylight saving time while Kathmandu does not, so the gap narrows or widens by an hour part of the year.

United Kingdom to Kathmandu time conversion table

United Kingdom (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 United Kingdom to Kathmandu time

Scheduling a call from United Kingdom to Kathmandu: a 10:00 AM start in United Kingdom lands at 2:45 PM in Kathmandu, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both United Kingdom 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.
Booking travel or deliveries: tracking Kathmandu local time against United Kingdom keeps pickup windows and arrival estimates honest across the +4h 45m offset.

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 United Kingdom and need Kathmandu colleagues present.
United Kingdom: 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 United Kingdom and Kathmandu

Both United Kingdom 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

United Kingdom and Kathmandu overlap for about 3 hours during the working day — enough for meetings if you avoid the edges of the window.

United Kingdom 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

United Kingdom

☀ 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:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between United Kingdom and Kathmandu?

United Kingdom (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 United Kingdom time to Kathmandu time?

Add +4h 45m to United Kingdom local time. For example, 9:00 AM in United Kingdom 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 United Kingdom.

What is the best time to call Kathmandu from United Kingdom?

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, United Kingdom or Kathmandu?

United Kingdom is 4 hours 45 minutes ahead of Kathmandu. When it is 12:00 PM in United Kingdom it is 4:45 PM in Kathmandu.

Do United Kingdom and Kathmandu use different time zones?

United Kingdom (United Kingdom) 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 United Kingdom–Kathmandu difference?

Yes at the moment: United Kingdom 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 United Kingdom's time zone?

BST also covers London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar and 5 more.

Which countries use BST, United Kingdom'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 United Kingdom and Kathmandu?

Not normally. The +4h 45m gap only pushes the date over for late-evening times.

What is the time difference between United Kingdom and Kathmandu?

Kathmandu is +4h 45m from United Kingdom.

What timezone is United Kingdom in?

United Kingdom operates on its local timezone.

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 Kathmandu?

Standard business hours in Kathmandu are 10:00 AM - 5:00 PM NPT.

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.