Highlighted rows fall within 09:00–18:00 in both places: 3 shared working hours.
Clock changes in London and Bangkok
London
British Summer Time (BST)
Next clock change Sun 25 Oct 2026 (UTC+1 → UTC+0)
Bangkok
Indochina Time (UTC+7)
No daylight saving time.
Time difference between London and Bangkok today
Right now Bangkok is 6 hours ahead of London. When it is 09:00 in London, it is 15:00 in Bangkok. London is on British Summer Time (BST); Bangkok is on Indochina Time (UTC+7).
When the London to Bangkok time difference changes
For most of the year Bangkok is 6 hours ahead of London. From 25 October to 31 December 2026, Bangkok is 7 hours ahead of London instead, because the two places change their clocks on different dates. Meetings booked by the usual gap land an hour off in those weeks.
Dates
Bangkok vs London
Length
29 March 2026 to 24 October 2026
6 hours ahead
210 days
25 October 2026 to 31 December 2026
7 hours ahead
68 days
1 January 2027 to 27 March 2027
7 hours ahead
86 days
28 March 2027 to 30 October 2027
6 hours ahead
217 days
31 October 2027 to 31 December 2027
7 hours ahead
62 days
When London and Bangkok are both at work
When Bangkok is 6 hours ahead of London: 2 shared office hours, 09:00 to 11:00 in London (15:00 to 17:00 in Bangkok).
When Bangkok is 7 hours ahead of London: 1 shared office hour, 09:00 to 10:00 in London (16:00 to 17:00 in Bangkok).
Frequently asked questions about London and Bangkok time
What time is it in Bangkok when it is 9:00 AM in London?
15:00 today; Bangkok is 6 hours ahead of London.
Does the time difference between London and Bangkok change?
Yes. It is usually 6 hours ahead, but changes when one side moves its clocks: 7 hours ahead from 25 October to 31 December 2026; 7 hours ahead from 1 January to 27 March 2027.