BST to GMT to Adelaide, Australia
Compare BST time with GMT and Adelaide time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Greenwich Mean Time is 0 hours ahead of Greenwich Mean Time and 10 hours and 30 minutes behind ACDT (Australian Central Daylight Time)
12:00 pm12:00 in GMT is 12:00 pm12:00 in GMT and is 10:30 pm22:30 in Adelaide, Australia
GMT to GMT call time
Best time for a conference call or a meeting is between 9am-5pm in GMT which corresponds to 9am-5pm in GMT
GMT to Adelaide call time
Best time for a conference call or a meeting is between 7:30am-8:30am in GMT which corresponds to 6pm-7pm in Adelaide
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
10:30 pm22:30 ACDT (Australian Central Daylight Time) (Adelaide, Australia). Offset UTC +10:30 hours
12:00 pm12:00 GMT / 12:00 pm12:00 GMT / 10:30 pm22:30 Adelaide, Australia
| GMT | GMT | Adelaide, Australia |
|---|---|---|
| 12am (midnight) | 12am (midnight) | 10:30 am |
| 1am | 1am | 11:30 am |
| 2am | 2am | 12:30 pm |
| 3am | 3am | 1:30 pm |
| 4am | 4am | 2:30 pm |
| 5am | 5am | 3:30 pm |
| 6am | 6am | 4:30 pm |
| 7am | 7am | 5:30 pm |
| 8am | 8am | 6:30 pm |
| 9am | 9am | 7:30 pm |
| 10am | 10am | 8:30 pm |
| 11am | 11am | 9:30 pm |
| 12pm (noon) | 12pm (noon) | 10:30 pm |
| 1pm | 1pm | 11:30 pm |
| 2pm | 2pm | 12:30 am |
| 3pm | 3pm | 1:30 am |
| 4pm | 4pm | 2:30 am |
| 5pm | 5pm | 3:30 am |
| 6pm | 6pm | 4:30 am |
| 7pm | 7pm | 5:30 am |
| 8pm | 8pm | 6:30 am |
| 9pm | 9pm | 7:30 am |
| 10pm | 10pm | 8:30 am |
| 11pm | 11pm | 9:30 am |
| 00:00 | 00:00 | 10:30 |
| 01:00 | 01:00 | 11:30 |
| 02:00 | 02:00 | 12:30 |
| 03:00 | 03:00 | 13:30 |
| 04:00 | 04:00 | 14:30 |
| 05:00 | 05:00 | 15:30 |
| 06:00 | 06:00 | 16:30 |
| 07:00 | 07:00 | 17:30 |
| 08:00 | 08:00 | 18:30 |
| 09:00 | 09:00 | 19:30 |
| 10:00 | 10:00 | 20:30 |
| 11:00 | 11:00 | 21:30 |
| 12:00 | 12:00 | 22:30 |
| 13:00 | 13:00 | 23:30 |
| 14:00 | 14:00 | 00:30 |
| 15:00 | 15:00 | 01:30 |
| 16:00 | 16:00 | 02:30 |
| 17:00 | 17:00 | 03:30 |
| 18:00 | 18:00 | 04:30 |
| 19:00 | 19:00 | 05:30 |
| 20:00 | 20:00 | 06:30 |
| 21:00 | 21:00 | 07:30 |
| 22:00 | 22:00 | 08:30 |
| 23:00 | 23:00 | 09:30 |
British Summer Time
Offset: BST is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe
Countries using this time zone: Britain (UK), Guernsey, Isle of Man, Jersey
Principal Cities: The largest city in the BST time zone is London in United Kingdom, with about 7.557 million people. Other major cities in this time zone include Birmingham, Glasgow, Liverpool, Saint Helier.
Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.
BST representations, usage and related time zones
- +01 - basic short
- +0100 - basic
- +01:00 - extended
- +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
- Alpha - Military abbreviation for BST
- A - short form of 'Alpha'
- Europe/Belfast
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- British Summer Time - UTC +1
- Bangladesh Standard Time - UTC +6
- Bougainville Standard Time - UTC +11
- BST - British Summer Time
- CET - Central European Time
- IST - Irish Standard Time
- WEST - Western European Summer Time
- A - Alpha Time Zone
- CET - Central European Time
- MEZ - Mitteleuropäische Zeit
- WAT - West Africa Time
- WST - Western Sahara Summer Time
- BMT - Biel Mean Time
Greenwich Mean Time
Offset: GMT is 0 hours ahead Greenwich Mean Time (GMT) and is used in Europe
Countries using this time zone: Burkina Faso, Côte d'Ivoire, Britain (UK), Guernsey, Ghana, Greenland, Gambia, Guinea, Guinea-Bissau, Ireland, Isle of Man, Iceland, Jersey, Liberia, Mali, Mauritania, St Helena, Sierra Leone, Senegal, Sao Tome & Principe, Togo
Principal Cities: The largest city in the GMT time zone is London in United Kingdom, with about 7.557 million people. Other major cities in this time zone include Abidjan, Dakar, Grand Dakar, Accra.
Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.
GMT representations, usage and related time zones
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
- Zulu - Military abbreviation for GMT
- Z - short form of 'Zulu'
- Africa/Abidjan
- Africa/Accra
- Africa/Bamako
- Africa/Banjul
- Africa/Bissau
- Africa/Conakry
- Africa/Dakar
- Africa/Freetown
- Africa/Lome
- Africa/Monrovia
- Africa/Nouakchott
- Africa/Ouagadougou
- Africa/Sao_Tome
- Africa/Timbuktu
- America/Danmarkshavn
- Atlantic/Reykjavik
- Atlantic/St_Helena
- Eire
- Etc/GMT
- Etc/GMT+0
- Etc/GMT-0
- Etc/GMT0
- Etc/Greenwich
- Europe/Belfast
- Europe/Dublin
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- GMT
- GMT+0
- GMT-0
- GMT0
- Greenwich
- Iceland
- EGST - Eastern Greenland Summer Time
- GMT - Greenwich Mean Time
- WET - Western European Time
- AZOST - Azores Summer Time
- UTC - Universal Time Coordinated
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
Adelaide Information
Time Zone
ACDT - Australian Central Daylight Time
+10:30 hours during Australian Central Daylight Time.
Sunday, October 4, 2026 at 2:00 am local time. DST starts annually on the 1st Sunday of October. Clocks are turned forward 1 hour to Sunday, October 4, 2026 at 3:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Sunday, April 5, 2026 at 3:00 am local time. DST ends annually on the 1st Sunday of April. Clocks are turned backward 1 hour to Sunday, April 5, 2026 at 2:00 am local standard time instead. Also called Fall Back or switch to Winter Time.