AEDT to AEST to ACST to ACDT to AWDT to AWST

Time Difference

Australian Eastern Standard Time is 0 hours ahead of Australian Eastern Standard Time and 0 hours and 30 minutes ahead of Australian Central Standard Time and 0 hours and 30 minutes ahead of Australian Central Standard Time and 2 hours ahead of Australian Western Standard Time and 2 hours ahead of Australian Western Standard Time
9:00 pm21:00 in AEST is 9:00 pm21:00 in AEST and is 8:30 pm20:30 in ACST and is 8:30 pm20:30 in ACST and is 7:00 pm19:00 in AWST and is 7:00 pm19:00 in AWST

AEST to AEST call time
Best time for a conference call or a meeting is between 9am-5pm in AEST which corresponds to 9am-5pm in AEST
AEST to ACST call time
Best time for a conference call or a meeting is between 9:30am-5pm in AEST which corresponds to 9am-4:30pm in ACST
AEST to ACST call time
Best time for a conference call or a meeting is between 9:30am-5pm in AEST which corresponds to 9am-4:30pm in ACST
AEST to AWST call time
Best time for a conference call or a meeting is between 11am-5pm in AEST which corresponds to 9am-3pm in AWST
AEST to AWST call time
Best time for a conference call or a meeting is between 11am-5pm in AEST which corresponds to 9am-3pm in AWST

9:00 pm21:00 Australian Eastern Standard Time (AEST). Offset UTC +10:00 hours
9:00 pm21:00 Australian Eastern Standard Time (AEST). Offset UTC +10:00 hours
8:30 pm20:30 Australian Central Standard Time (ACST). Offset UTC +9:30 hours
8:30 pm20:30 Australian Central Standard Time (ACST). Offset UTC +9:30 hours
7:00 pm19:00 Australian Western Standard Time (AWST). Offset UTC +8:00 hours
7:00 pm19:00 Australian Western Standard Time (AWST). Offset UTC +8:00 hours

9:00 pm21:00 AEST / 9:00 pm21:00 AEST / 8:30 pm20:30 ACST / 8:30 pm20:30 ACST / 7:00 pm19:00 AWST / 7:00 pm19:00 AWST

Australian Eastern Daylight Time

Offset: AEDT is 11 hours ahead Greenwich Mean Time (GMT) and is used in Australia

Countries using this time zone: Australia

Principal Cities: The largest city in the AEDT time zone is Sydney in Australia, with about 4.627 million people. Other major cities in this time zone include Melbourne, Canberra, Newcastle, Wollongong.

Daylight Saving: Australian Eastern Daylight Time (AEDT) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Australian Eastern Standard Time (AEST).

End: Australian Eastern Daylight Time (AEDT) ended on Sunday, April 5, 2026 at 3:00 am local time and clocks were set one hour back to Sunday, April 5, 2026, 2:00 am local standard time instead. Daylight saving ends annually on the first Sunday of April

Start: Australian Eastern Daylight Time (AEDT) starts on Sunday, October 4, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, October 4, 2026, 3:00 am. Daylight saving starts annually on the first Sunday of October

Australian Eastern Daylight Time (AEDT) is observer in New South Wales (except Broken Hill and Lord Howe Island), Victoria, Tasmania, Australian Capital Territory, Sydney, Melbourne, Hobart, Canberra AEDT is equal to Coordinated Universal Time plus 11 hours (UTC +11). During a summer time period, these locations move from AEST to Australian Eastern Daylight Time (AEDT), and clocks are advanced to UTC +11.

Daylight saving or summer time is commonly expressed as AEDT (Australian Eastern Daylight Time). In periods of daylight saving an hour is added to the Local Standard Time.

The regulation of time is a State Government responsibility. Changes to the period of daylight saving may be made by regulation. Legislation to harmonise daylight saving in NSW with the south-eastern states and the ACT was passed by the NSW Parliament on 23 October 2007.

History of daylight saving in New South Wales
Daylight saving operated nationally for single summer during World War I from 1 January 1917 to 25 March 1917 and during World War II for three summers in a row, starting on 1 January 1942. Daylight saving was re-introduced for third time in New South Wales on 31 October 1971 after New South Wales Parliament passed the Standard Time Act 1971. A referendum held on 1 May 1976 proposed that daylight saving should be on a permanent basis. The ballot paper stated: "At present there is a period commonly called 'daylight saving' by which time is advanced by one hour for the period commencing on the last Sunday in October in each year and ending on the first Sunday in March in the following year. Electors were then asked to answer YES or NO to the question: Are you in favour of daylight saving? 1,882,770 electors were in favour, 868,900 were against and 35,507 votes were informal.\" The period of daylight saving is prescribed by the Daylight Saving Regulations 2008, made under the Daylight Saving Act 2007. Since April 2008, daylight saving has been synchronised across Tasmania, New South Wales, Victoria, the ACT and South Australia, although South Australia remains half an hour behind throughout the year due to the observance of Australian Central Standard Time.

Which is correct Daylight Savings or Daylight Saving (with or without the 's' at the end)? The correct spelling in Australia is without the 's'.

AEDT representations, usage and related time zones

Australian Eastern Standard Time

Offset: AEST is 10 hours ahead Greenwich Mean Time (GMT) and is used in Australia

Countries using this time zone: Australia

Principal Cities: The largest city in the AEST time zone is Sydney in Australia, with about 4.627 million people. Other major cities in this time zone include Melbourne, Brisbane, Gold Coast, Canberra.

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Australian Eastern Daylight Time (AEDT).

Start: Australian Eastern Standard Time (AEST) started on Sunday, April 5, 2026 at 3:00 am local time and clocks were set one hour back to Sunday, April 5, 2026, 2:00 am. Standard time starts annually on the first Sunday of April.

End: Australian Eastern Standard Time (AEST) ends on Sunday, October 4, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, October 4, 2026, 3:00 am local daylight time instead. Standard time ends annually on the first Sunday of October.

Australian Eastern Standard Time (AEST) is used in Queensland, Victoria, Tasmania, New South Wales (except Broken Hill), Australian Capital Territory and in folling major cities Brisbane, Sydney, Melbourne, Hobart, Canberra

Only part of Australia observe daylight saving. It is used in New South Wales, Victoria, South Australia, Tasmania, and the Australian Capital Territory. Daylight saving is not observed in Queensland, Western Australia or the Northern Territory.

AEST representations, usage and related time zones

Australian Central Standard Time

Offset: ACST is 9 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Australia

Countries using this time zone: Australia

Principal Cities: The largest city in the ACST time zone is Adelaide in Australia, with about 1.225 million people. Other major cities in this time zone include Darwin, Adelaide Hills, Alice Springs, Palmerston.

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).

Start: Australian Central Standard Time (ACST) started on Sunday, April 5, 2026 at 3:00 am local time and clocks were set one hour back to Sunday, April 5, 2026, 2:00 am. Standard time starts annually on the first Sunday of April.

End: Australian Central Standard Time (ACST) ends on Sunday, October 4, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, October 4, 2026, 3:00 am local daylight time instead. Standard time ends annually on the first Sunday of October.

ACST representations, usage and related time zones

Australian Central Daylight Time

Offset: ACDT is 10 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Australia

Countries using this time zone: Australia

Principal Cities: The largest city in the ACDT time zone is Adelaide in Australia, with about 1.225 million people. Other major cities in this time zone include Adelaide Hills, Mount Gambier, Morphett Vale, Prospect.

Daylight Saving: Australian Central Daylight Time (ACDT) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Australian Central Standard Time (ACST).

End: Australian Central Daylight Time (ACDT) ended on Sunday, April 5, 2026 at 3:00 am local time and clocks were set one hour back to Sunday, April 5, 2026, 2:00 am local standard time instead. Daylight saving ends annually on the first Sunday of April

Start: Australian Central Daylight Time (ACDT) starts on Sunday, October 4, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, October 4, 2026, 3:00 am. Daylight saving starts annually on the first Sunday of October

ACDT representations, usage and related time zones

Australian Western Daylight Time

Offset: AWDT is 9 hours ahead Greenwich Mean Time (GMT) and is used in Australia

AWDT representations, usage and related time zones

Australian Western Standard Time

Offset: AWST is 8 hours ahead Greenwich Mean Time (GMT) and is used in Australia

Countries using this time zone: Australia

Principal Cities: The largest city in the AWST time zone is Perth in Australia, with about 1.897 million people. Other major cities in this time zone include Rockingham, Mandurah, Bunbury, Armadale.

Daylight Saving: Clocks in Australian Western Standard Time (AWST) do not change for daylight saving time, so AWST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

AWST representations, usage and related time zones