ACST to AEST Converter
Time Difference
Australian Central Standard Time is 0 hours and 30 minutes behind of Australian Eastern Standard Time
8:00 pm20:00 in ACST is 8:30 pm20:30 in AEST
ACST to AEST call time
Best time for a conference call or a meeting is between 8am-5:30pm in ACST which corresponds to 8:30am-6pm in AEST
8:00 pm20:00 Australian Central Standard Time (ACST). Offset UTC +9:30 hours
8:30 pm20:30 Australian Eastern Standard Time (AEST). Offset UTC +10:00 hours
8:00 pm20:00 ACST / 8:30 pm20:30 AEST
ACST | AEST |
---|---|
12am (midnight) | 12:30 am |
1am | 1:30 am |
2am | 2:30 am |
3am | 3:30 am |
4am | 4:30 am |
5am | 5:30 am |
6am | 6:30 am |
7am | 7:30 am |
8am | 8:30 am |
9am | 9:30 am |
10am | 10:30 am |
11am | 11:30 am |
12pm (noon) | 12:30 pm |
1pm | 1:30 pm |
2pm | 2:30 pm |
3pm | 3:30 pm |
4pm | 4:30 pm |
5pm | 5:30 pm |
6pm | 6:30 pm |
7pm | 7:30 pm |
8pm | 8:30 pm |
9pm | 9:30 pm |
10pm | 10:30 pm |
11pm | 11:30 pm |
0:00 | 0:30 |
1:00 | 1:30 |
2:00 | 2:30 |
3:00 | 3:30 |
4:00 | 4:30 |
5:00 | 5:30 |
6:00 | 6:30 |
7:00 | 7:30 |
8:00 | 8:30 |
9:00 | 9:30 |
10:00 | 10:30 |
11:00 | 11:30 |
12:00 | 12:30 |
13:00 | 13:30 |
14:00 | 14:30 |
15:00 | 15:30 |
16:00 | 16:30 |
17:00 | 17:30 |
18:00 | 18:30 |
19:00 | 19:30 |
20:00 | 20:30 |
21:00 | 21:30 |
22:00 | 22:30 |
23:00 | 23:30 |
Australian Central Standard Time
Offset: ACST is 9 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Australia
Countries: It is used in following countries: Australia
Principal Cities: The largest city in the ACST timezone is Adelaide from Australia with population about 1.225 million people. Other major cities in the area are Darwin, Adelaide Hills, Alice Springs, Palmerston
Daylight Saving: This is a standard timezone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Australian Central Daylight Time (ACDT).
Start: ACST started and clocks were set one hour back on Sunday, 04 April 2021, at 3:00 (3:00 am) local time.
End: ACST ends and clocks are set one hour forward on Sunday, 03 October 2021, at 2:00 (2:00 am) local time.

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 nine hour and thirty minutes time differences to the east of the zero meridian.
- Australia/Adelaide
- Australia/Broken_Hill
- Australia/Darwin
- Australia/North
- Australia/South
- Australia/Yancowinna
Australian Eastern Standard Time
Offset: AEST is 10 hours ahead Greenwich Mean Time (GMT) and is used in Australia
Countries: It is used in following countries: Australia
Principal Cities: The largest city in the AEST timezone is Sydney from Australia with population about 4.627 million people. Other major cities in the area are Melbourne, Brisbane, Gold Coast, Canberra
Daylight Saving: This is a standard timezone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Australian Eastern Daylight Time (AEDT).
Start: AEST started and clocks were set one hour back on Sunday, 04 April 2021, at 3:00 (3:00 am) local time.
End: AEST ends and clocks are set one hour forward on Sunday, 03 October 2021, at 2:00 (2:00 am) local time.

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
- +10 - basic short
- +1000 - basic
- +10:00 - extended
- +1000 - sign character (+) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates ten hour and zero minutes time differences to the east of the zero meridian.
- Kilo - Military abbreviation for AEST
- K - short form of 'Kilo'
- Australia/ACT
- Australia/Brisbane
- Australia/Canberra
- Australia/Currie
- Australia/Hobart
- Australia/Lindeman
- Australia/Melbourne
- Australia/NSW
- Australia/Queensland
- Australia/Sydney
- Australia/Tasmania
- Australia/Victoria
- AEST - Australian Eastern Standard Time
- CHUT - Chuuk Time
- ChST - Chamorro Standard Time
- K - Kilo Time Zone
- KDT - Korea Daylight Time
- PGT - Papua New Guinea Time
- VLAT - Vladivostok Time
- YAKST - Yakutsk Summer Time
- YAPT - Yap Time
- +10 -