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The United Kingdom is on summer time: BST (UTC+1) until Sun, Oct 25.

Iceland and Ghana stay on GMT (UTC+0).

AustraliaACDT
UTC+10:30
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Quick answers

Selected conversion

12:00 pm12:00 GMT (UTC+0), Oct 13, 2026 = 10:30 pm22:30 ACDT (UTC+10:30), Oct 13, 2026

GMT is 10 hours and 30 minutes behind Adelaide Hills.

How the time difference changes

Depending on seasonal clock changes, GMT is 9 hours and 30 minutes behind Adelaide Hills or GMT is 10 hours and 30 minutes behind Adelaide Hills.

Depending on seasonal clock changes, working hours of 9:00 am to 5:00 pm in GMT correspond to 6:30 pm to 2:30 am (next day) in Adelaide Hills or working hours of 9:00 am to 5:00 pm in GMT correspond to 7:30 pm to 3:30 am (next day) in Adelaide Hills.Depending on seasonal clock changes, working hours of 09:00 to 17:00 in GMT correspond to 18:30 to 02:30 (next day) in Adelaide Hills or working hours of 09:00 to 17:00 in GMT correspond to 19:30 to 03:30 (next day) in Adelaide Hills.

Compare GMT time with Adelaide Hills time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Greenwich Mean Time is 10 hours and 30 minutes behind ACDT (Australian Central Daylight Time).
12:00 pm12:00 in GMT is 10:30 pm22:30 in Adelaide Hills, Australia

GMT to Adelaide Hills call time
Best time for a conference call or a meeting is between 7:30am-8:30am07:30-08:30 in GMT which corresponds to 6pm-7pm18:00-19:00 in Adelaide Hills. Their 9am–5pm09:00–17:00 working hours do not overlap; this is a suggested compromise.

12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
10:30 pm22:30 ACDT (Australian Central Daylight Time) (Adelaide Hills, Australia). Offset UTC +10:30 hours

12:00 pm12:00 GMT / 10:30 pm22:30 Adelaide Hills, Australia

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Hourly time comparison
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Greenwich Mean Time

Offset: GMT is the same as Greenwich Mean Time (GMT).

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 the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Abidjan, Bamako, Dakar, Kumasi.

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 the two are the same. In the military, GMT is known as Zulu time. Greenwich Mean Time was the same as Universal Time (UT), a standard astronomical concept used in many technical fields, until the introduction of UTC in 1972.

Map of the areas on Greenwich Mean Time (GMT)
GMT all year GMT part of the year

Today the lighter areas are on UTC+1 (British Summer Time, Irish Standard Time).

GMT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
  • +00 - basic short
  • +0000 - basic
  • +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Zulu - Military abbreviation for GMT
  • Z - short form of 'Zulu'
IANA/Olson: Reflects GMT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • 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
Time zones with the GMT +0 offset:
  • EGST - Eastern Greenland Summer Time
  • GMT - Greenwich Mean Time
  • WET - Western European Time
  • AZOST - Azores Summer Time
  • UTC - Coordinated Universal Time
  • WT - Western Sahara Standard Time
  • Z - Zulu Time Zone

Adelaide Hills Time Zone and Facts

Time Zone

Abbreviation / Offset
ACDT – Australian Central Daylight Time, UTC+10:30 (now, daylight saving time)
ACST – Australian Central Standard Time, UTC+9:30 (standard time)
Daylight Saving Time Ends
123456789101112Sunday, April 4, 2027 at 3:00 amSunday, April 4, 2027 at 03:00: clocks go back 1 hour to 2:00 am02:00 (ACST). DST ends on the 1st Sunday of April each year. Also called Fall Back or Winter Time.
Daylight Saving Time Starts
123456789101112Sunday, October 3, 2027 at 2:00 amSunday, October 3, 2027 at 02:00: clocks go forward 1 hour to 3:00 am03:00 (ACDT). DST starts on the 1st Sunday of October each year. Also called Spring Forward or Summer Time.

Adelaide Hills Facts

Country
Australia
Population
72,260
Currency
Dollar (AUD)
Geographic Coordinates
34° 54' S Latitude / 138° 42' E Longitude
International Dialing Code
+61