What is the time difference between London and Bangkok?

Bangkok (ICT, UTC+7) is 7 hours ahead of London in winter (GMT, UTC+0) and 6 hours ahead in summer (BST, UTC+1). Bangkok does not observe Daylight Saving Time, so the offset changes only when the UK shifts its clocks in spring and autumn.

Does Bangkok observe Daylight Saving Time?

No. Bangkok uses ICT (Indochina Time, UTC+7) year-round. Only London shifts its clocks, which is why the London-Bangkok gap alternates between 7 and 6 hours each year.

When does the offset change from 7 to 6 hours?

The UK moves clocks forward on the last Sunday in March at 01:00 GMT, entering BST (UTC+1). At that point Bangkok goes from 7 hours ahead to 6 hours ahead. The gap returns to 7 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 Bangkok?

During GMT (winter), a 09:00 London call lands at 16:00 in Bangkok — a reasonable window. During BST (summer), 09:00 London is 15:00 Bangkok, giving a comfortable afternoon slot. An 09:00–12:00 London slot works well for both cities' business hours.

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.

ICT stands for Indochina Time. It is UTC+7, used across Thailand, Vietnam, Laos, Cambodia, and parts of Indonesia year-round. There is no Daylight Saving adjustment in any of these countries.

Time Difference: London to Bangkok

See the current time in London and Bangkok side by side, with the live UTC offset (ICT is UTC+7, always ahead of GMT/BST), updated every second.

London, United Kingdom

--:--:--

GMT UTC+0

Bangkok, Thailand

--:--:--

ICT UTC+7

Current Offset

+7 hours

Bangkok is 7 hours ahead of London

Meeting Overlap Finder

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

London	Bangkok	Status

Convert London Time to Bangkok Time

Based on the current offset — updates automatically

London	Bangkok

Summary

This tool displays the live current time in both London (Europe/London — GMT in winter, BST in summer) and Bangkok (Asia/Bangkok — ICT, UTC+7 year-round, no DST) side by side. Bangkok does not observe Daylight Saving Time, so the offset shifts twice a year: 7 hours ahead of London in winter (GMT) and 6 hours ahead in summer (BST). Use this tool to schedule calls with Bangkok, coordinate remote teams across the UK and Thailand, or verify overlapping business hours.

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/Bangkok time (ICT, UTC+7).
The UTC offsets of both cities are compared to calculate the exact hour difference.
All three values — London time, Bangkok time, and the offset — refresh every second.
When London switches between GMT and BST, the displayed offset adjusts automatically from +7 to +6 hours.

Use cases

Scheduling video calls between London and Bangkok offices.
Checking if a colleague in Bangkok is still at their desk.
Planning UK-Thailand travel and arrival time comparisons.
Remote teams coordinating daily standups across the UK and Thailand.
Finding overlapping business hours for London-Bangkok meetings.
Verifying whether London is currently on GMT or BST.
Journalists checking broadcast times for live Bangkok events.
Students and teachers arranging online lessons between the UK and Thailand.

Frequently Asked Questions

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