BST to Bangkok
+6hBST
BSTSOURCEBangkok
ICTGreen rows indicate typical business hours (9 AM - 5 PM)
BST and ICT on the World Map
The map below highlights the BST (British Summer Time) and ICT (Indochina Time) timezone regions across the globe.
BST – British Summer Time
UTC+01:00British Summer Time (BST, UTC+01:00) is the daylight saving period in the United Kingdom, running from late March to late October.
- •BST runs from the last Sunday in March to the last Sunday in October.
- •BST is exactly one hour ahead of GMT, the UK's standard time.
- •During BST, London is 4 hours ahead of New York while the US is on Eastern Daylight Time.
- •The Isle of Man and the Channel Islands also observe BST.
ICT – Indochina Time
UTC+07:00Indochina Time (ICT) is the time zone for Vietnam, Thailand, Laos, and Cambodia, 7 hours ahead of UTC.
- •Bangkok is one of the most visited cities in the world.
- •ICT is 12 hours ahead of EST.
- •Thailand, Vietnam, and Cambodia all share ICT.
About Bangkok
WikipediaBangkok operates on Indochina Time (ICT), UTC+7. As Southeast Asia's largest economy hub, Bangkok bridges East Asian and South Asian business hours.
Bangkok is one of the world's most visited cities, with over 22 million visitors annually.
Time Conversion Guide: BST to Bangkok
BST runs on British Summer Time (BST) at UTC+01:00. Bangkok runs on Indochina Time (ICT) at UTC+07:00. That puts BST 6 hours ahead of Bangkok — a difference of +6h at the current offsets.
In practice, when it is 9:00 AM in BST it is 3:00 PM in Bangkok. Midnight in BST is 6:00 AM in Bangkok. Neither zone observes daylight saving time, so the offset between them stays constant all year.
BST to Bangkok time conversion table
| BST (BST) | Bangkok (ICT) | Day |
|---|---|---|
| 12:00 AM | 6:00 AM | same day |
| 6:00 AM | 12:00 PM | same day |
| 7:00 AM | 1:00 PM | same day |
| 8:00 AM | 2:00 PM | same day |
| 9:00 AM | 3:00 PM | same day |
| 12:00 PM | 6:00 PM | same day |
| 3:00 PM | 9:00 PM | same day |
| 5:00 PM | 11:00 PM | same day |
| 6:00 PM | 12:00 AM | next day |
| 9:00 PM | 3:00 AM | next day |
Why people convert BST to Bangkok time
- Scheduling a call from BST to Bangkok: a 10:00 AM start in BST lands at 4:00 PM in Bangkok, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both BST and Bangkok are inside the 9-to-5 working day between 9:00 AM and 11:00 AM BST time (3:00 PM–5:00 PM ICT). That is roughly 2 hours of usable overlap.
- Watching a live event or market open: BST viewers need 3:00 PM in Bangkok to catch a 9:00 AM start there, and 6:00 PM if the event is anchored to BST.
- Always state the zone abbreviation, not just the hour. "3:00 PM BST" is unambiguous; "3 PM" across a +6h gap is not.
- Block 9:00 AM–11:00 AM BST as the recurring meeting window if you work primarily from BST and need Bangkok colleagues present.
About BST (British Summer Time)
British Summer Time (BST) is the daylight saving period in the United Kingdom, when clocks move one hour forward from Greenwich Mean Time (GMT, UTC+00:00) to UTC+01:00. It runs from the last Sunday in March to the last Sunday in October. England, Scotland, Wales and Northern Ireland all follow it, along with the Isle of Man and the Channel Islands of Jersey and Guernsey. During BST, London is one hour ahead of UTC, four hours ahead of New York on Eastern Daylight Time, and five hours ahead of New York once the United States returns to Eastern Standard Time in November. BST is also used to abbreviate Bangladesh Standard Time (UTC+06:00), which is listed separately on this site.
About ICT (Indochina Time)
Indochina Time (ICT) is used across Southeast Asia including Vietnam, Thailand, Laos, and Cambodia. Indonesia (Western time, WIB) also uses UTC+07:00. ICT does not observe daylight saving time.
Best time to call between BST and Bangkok
Both BST and Bangkok sit inside the 9 AM – 5 PM working day between 9:00 AM–11:00 AM BST, which is 3:00 PM–5:00 PM ICT. That gives roughly 2 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
BST and Bangkok overlap for about 2 hours during the working day — enough for meetings if you avoid the edges of the window.
BST is 6 hours ahead of Bangkok (BST UTC+01:00 → ICT UTC+07:00). The shared working window is 9:00 AM–11:00 AM BST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
BST
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
Bangkok
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 BST and Bangkok?
BST (BST, UTC+01:00) is 6 hours ahead of Bangkok (ICT, UTC+07:00). The gap is currently +6h.
How do I convert BST time to Bangkok time?
Add +6h to BST local time. For example, 9:00 AM in BST is 3:00 PM in Bangkok.
What time is it in Bangkok right now?
Bangkok uses ICT at UTC+07:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +6h offset from BST.
What is the best time to call Bangkok from BST?
Call between 9:00 AM and 11:00 AM BST — that maps to 3:00 PM–5:00 PM ICT and keeps both parties inside the working day.
Which is ahead, BST or Bangkok?
BST is 6 hours ahead of Bangkok. When it is 12:00 PM in BST it is 6:00 PM in Bangkok.
Do BST and Bangkok use different time zones?
BST uses BST at UTC+01:00, while Bangkok (Thailand) uses ICT at UTC+07:00. The IANA identifiers are Europe/London and Asia/Bangkok.
Does daylight saving time affect the BST–Bangkok difference?
Neither zone observes daylight saving time, so the +6h offset between BST and Bangkok is fixed all year.
Which other cities share BST's time zone?
BST also covers London, Birmingham, Manchester, Glasgow, Edinburgh, Cardiff, Belfast, Liverpool and 2 more.
Which countries use BST, BST's zone?
BST is used in United Kingdom.
Is there a day difference between BST and Bangkok?
Not normally. The +6h gap only pushes the date over for late-evening times.
What is the time difference between BST and Bangkok?
Bangkok is +6h from BST.
What timezone is BST in?
BST operates on its local timezone.
What timezone is Bangkok in?
Bangkok operates on Indochina Time (ICT), UTC+7. As Southeast Asia's largest economy hub, Bangkok bridges East Asian and South Asian business hours.
What are the business hours in Bangkok?
Standard business hours in Bangkok are 8:30 AM - 5:30 PM ICT.
Which countries use BST (British Summer Time)?
BST is used in United Kingdom.
Does BST observe daylight saving time?
Yes, BST switches to BST during summer months.
What are some interesting facts about BST?
BST runs from the last Sunday in March to the last Sunday in October. BST is exactly one hour ahead of GMT, the UK's standard time.
Which cities are in the ICT timezone?
Major cities in the ICT timezone include Bangkok, Ho Chi Minh City, Hanoi, Jakarta, Phnom Penh, Vientiane.
What is the UTC offset for ICT?
Indochina Time (ICT) is at UTC+07:00.
What should I know about the ICT timezone?
Bangkok is one of the most visited cities in the world. ICT is 12 hours ahead of EST.
When is it midnight in BST, what time is it in Bangkok?
When it is 12:00 AM (midnight) in BST (BST), it is +6h later in Bangkok (ICT).
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