What is the time difference between London and Karachi?

Karachi (PKT, UTC+5) is 5 hours ahead of London in winter (GMT, UTC+0) and 4 hours ahead in summer (BST, UTC+1). Pakistan does not observe Daylight Saving Time, so the offset changes only when the UK shifts its clocks in spring and autumn.

Does Karachi observe Daylight Saving Time?

No. Pakistan has not observed Daylight Saving Time since 2009 and stays on PKT (UTC+5) year-round. Only London shifts its clocks, which is why the London-Karachi gap alternates between 5 and 4 hours.

When does the offset change from 5 to 4 hours?

The UK moves clocks forward on the last Sunday in March at 01:00 GMT, entering BST (UTC+1). At that point Karachi goes from 5 hours ahead to 4 hours ahead. The gap returns to 5 hours on the last Sunday in October at 02:00 BST when the UK reverts to GMT.

What are the best meeting times for London and Karachi?

In winter (GMT), a 09:00–13:00 London window corresponds to 14:00–18:00 in Karachi — solid overlap in the afternoon. In summer (BST), a 09:00–14:00 London window corresponds to 13:00–18:00 Karachi. Morning London time works well for both cities.

Is this tool accurate for scheduling?

Yes. It uses the IANA timezone database embedded in your browser — the same source used by operating systems and calendar apps worldwide. Accuracy depends on your device clock being synchronized via NTP, which most devices do automatically.

PKT stands for Pakistan Standard Time. It is UTC+5, used across Pakistan year-round with no Daylight Saving Time. Karachi, Lahore, Islamabad, and all other Pakistani cities observe PKT.

Time Difference: London to Karachi

See the current time in London and Karachi side by side, with the live UTC offset (PKT is UTC+5, no DST), updated every second.

London, United Kingdom

--:--:--

GMT UTC+0

Karachi, Pakistan

--:--:--

PKT UTC+5

Current Offset

+5 hours

Karachi is 5 hours ahead of London

Meeting Overlap Finder

Business hours (09:00–18:00) highlighted — best overlap shaded

London	Karachi	Status

Convert London Time to Karachi Time

Based on the current offset — updates automatically

London	Karachi

Summary

This tool displays the live current time in both London (Europe/London — GMT in winter, BST in summer) and Karachi (Asia/Karachi — PKT, UTC+5 year-round, no DST) side by side. Karachi never observes Daylight Saving Time, so the offset between the two cities changes twice a year: 5 hours ahead of London in winter (GMT) and 4 hours ahead in summer (BST). Use this tool to schedule calls with Pakistan, coordinate remote teams, or plan travel between the UK and Karachi.

How it works

Your browser reads the current moment from your device clock.
It converts that moment to Europe/London time using the IANA timezone database built into modern browsers.
The same moment is converted to Asia/Karachi time (PKT, UTC+5).
The UTC offsets of both cities are compared to calculate the exact hour difference.
All three values — London time, Karachi time, and the offset — refresh every second.
When London switches between GMT and BST, the displayed offset adjusts automatically from +5 to +4 hours.

Use cases

Scheduling video calls between London and Karachi offices.
Checking if a colleague in Karachi is still at their desk.
Planning UK-Pakistan travel and arrival time comparisons.
Remote teams coordinating daily standups across the UK and Pakistan.
Finding overlapping business hours for London-Karachi meetings.
Verifying whether London is currently on GMT or BST.
Investors monitoring London and Karachi stock exchange hours.
Students and teachers arranging online lessons between the UK and Pakistan.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu