Bangkok to London to ACST Time Converter
South Australia is on daylight saving time: ACDT (UTC+10:30) until Sun, Apr 4, 2027.
The Northern Territory stays on ACST (UTC+9:30).
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Quick answers
Selected conversion
7:00 pm19:00 ICT (UTC+7), Nov 15, 2026 = 12:00 pm12:00 GMT (UTC+0), Nov 15, 2026 = 9:30 pm21:30 ACST (UTC+9:30), Nov 15, 2026
Bangkok is 7 hours ahead of London. Bangkok is 2 hours and 30 minutes behind ACST.
How the time difference changes
Bangkok to London
For most of the year, Bangkok is 6 hours ahead of London. From Oct 25, 2026 to Mar 28, 2027, and from Oct 31, 2027 to Mar 26, 2028, Bangkok is 7 hours ahead of London.
For most of the year, working hours of 9:00 am to 6:00 pm in Bangkok correspond to 3:00 am to 12:00 pm in London. At other times of the year, working hours of 9:00 am to 6:00 pm in Bangkok correspond to 2:00 am to 11:00 am in London.For most of the year, working hours of 09:00 to 18:00 in Bangkok correspond to 03:00 to 12:00 in London. At other times of the year, working hours of 09:00 to 18:00 in Bangkok correspond to 02:00 to 11:00 in London.
Bangkok to ACST
Bangkok is 2 hours and 30 minutes behind ACST year-round.
Working hours of 9:00 am to 6:00 pm in Bangkok correspond to 11:30 am to 8:30 pm in ACST.Working hours of 09:00 to 18:00 in Bangkok correspond to 11:30 to 20:30 in ACST.
Compare Bangkok time with London and ACST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
ICT (Indochina Time) is 7 hours ahead of GMT (Greenwich Mean Time). ICT (Indochina Time) is 2 hours and 30 minutes behind Australian Central Standard Time.
7:00 pm19:00 in Bangkok, Thailand is 12:00 pm12:00 in London, United Kingdom and is 9:30 pm21:30 in ACST
Bangkok to London call time
Best time for a conference call or a meeting is between 4pm-6pm16:00-18:00 in Bangkok which corresponds to 9am-11am09:00-11:00 in London.
Bangkok to ACST call time
Best time for a conference call or a meeting is between 9am-3:30pm09:00-15:30 in Bangkok which corresponds to 11:30am-6pm11:30-18:00 in ACST.
7:00 pm19:00 ICT (Indochina Time) (Bangkok, Thailand). Offset UTC +7:00 hours
12:00 pm12:00 GMT (Greenwich Mean Time) (London, United Kingdom). Offset UTC 0:00 hours
9:30 pm21:30 Australian Central Standard Time (ACST). Offset UTC +9:30 hours
7:00 pm19:00 Bangkok, Thailand / 12:00 pm12:00 London, United Kingdom / 9:30 pm21:30 ACST
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| Bangkok, Thailand | London, United Kingdom | ACST |
|---|---|---|
| 5:00pm previous day | 2:30am | |
| 6:00pm previous day | 3:30am | |
| 7:00pm previous day | 4:30am | |
| 8:00pm previous day | 5:30am | |
| 9:00pm previous day | 6:30am | |
| 10:00pm previous day | 7:30am | |
| 11:00pm previous day | 8:30am | |
| 12:00am | 9:30am | |
| 1:00am | 10:30am | |
| 2:00am | 11:30am | |
| 3:00am | 12:30pm | |
| 4:00am | 1:30pm | |
| 5:00am | 2:30pm | |
| 6:00am | 3:30pm | |
| 7:00am | 4:30pm | |
| 8:00am | 5:30pm | |
| 9:00am | 6:30pm | |
| 10:00am | 7:30pm | |
| 11:00am | 8:30pm | |
| 12:00pm | 9:30pm | |
| 1:00pm | 10:30pm | |
| 2:00pm | 11:30pm | |
| 3:00pm | 12:30am next day | |
| 4:00pm | 1:30am next day | |
| 17:00 previous day | 02:30 | |
| 18:00 previous day | 03:30 | |
| 19:00 previous day | 04:30 | |
| 20:00 previous day | 05:30 | |
| 21:00 previous day | 06:30 | |
| 22:00 previous day | 07:30 | |
| 23:00 previous day | 08:30 | |
| 00:00 | 09:30 | |
| 01:00 | 10:30 | |
| 02:00 | 11:30 | |
| 03:00 | 12:30 | |
| 04:00 | 13:30 | |
| 05:00 | 14:30 | |
| 06:00 | 15:30 | |
| 07:00 | 16:30 | |
| 08:00 | 17:30 | |
| 09:00 | 18:30 | |
| 10:00 | 19:30 | |
| 11:00 | 20:30 | |
| 12:00 | 21:30 | |
| 13:00 | 22:30 | |
| 14:00 | 23:30 | |
| 15:00 | 00:30 next day | |
| 16:00 | 01:30 next day |
Bangkok Time Zone and Facts
Time Zone
Bangkok Facts
London Time Zone and Facts
Time Zone
BST – British Summer Time, UTC+1 (daylight saving time)
London Facts
Australian Central Standard Time
Offset: ACST is 9 hours and 30 minutes ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Australia
Principal Cities: The largest city in the ACST time zone is Adelaide in Australia, with about 1.469 million people. Other major cities in this time zone include Darwin, Palmerston, Alice Springs, Mount Gambier.
Today the lighter areas are on UTC+10:30 (ACDT).
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Australian Central Daylight Time (ACDT).
End: Australian Central Standard Time (ACST) ended on Sunday, October 4, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, October 4, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the first Sunday of October.
Start: Australian Central Standard Time (ACST) starts on Sunday, April 4, 2027 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, April 4, 2027, 2:00 am02:00. Standard time starts annually on the first Sunday of April.
See Australia daylight saving time and upcoming clock changes worldwide.
ACST representations, usage and related time zones
- +0930 - basic
- +09:30 - extended
- +0930 - sign character (+) followed by a four digit time providing hours (09) and minutes (30) of the offset. Indicates an offset of nine hours and thirty minutes to the east of the zero meridian.
- Australia/Adelaide
- Australia/Broken_Hill
- Australia/Darwin
- Australia/North
- Australia/South
- Australia/Yancowinna