ACST: Australian Central Standard Time
Local time in ACST: 20:36
Saturday, 31 October 2026
ACST (UTC+9:30) is the standard time in Australia. It is not in use now: until 4 April 2027 clocks are on ACDT (UTC+10:30).
In the other half of the year: ACDT, Australian Central Daylight Time
Where ACST is used
Largest cities on ACST
- Adelaide Australia
- Darwin Australia
- Adelaide Hills Australia
- Palmerston Australia
- Alice Springs Australia
- Mount Gambier Australia
- Mount Barker Australia
- Whyalla Australia
- Gawler Australia
- Broken Hill Australia
- Prospect Australia
- Murray Bridge Australia
ACST and other time zones
| Time zone | UTC offset | Time now | Difference from ACST |
|---|---|---|---|
| UTC Coordinated Universal Time · UTC | UTC | −9.5 hours | |
| GMT Greenwich Mean Time · UTC | UTC | −9.5 hours | |
| CET Central European Time · UTC+1 | UTC+1 | −8.5 hours | |
| EET Eastern European Time · UTC+2 | UTC+2 | −7.5 hours | |
| MSK Moscow Time · UTC+3 | UTC+3 | −6.5 hours | |
| GST Gulf Standard Time · UTC+4 | UTC+4 | −5.5 hours | |
| IST India Standard Time · UTC+5:30 | UTC+5:30 | −4 hours | |
| ICT Indochina Time · UTC+7 | UTC+7 | −2.5 hours | |
| CST Central Standard Time · UTC-6 | UTC-6 | −15.5 hours | |
| JST Japan Standard Time · UTC+9 | UTC+9 | −0.5 hours | |
| AEST Australian Eastern Standard Time · UTC+10 | UTC+10 | +0.5 hours | |
| NZST New Zealand Standard Time · UTC+12 | UTC+12 | +2.5 hours | |
| EST Eastern Standard Time · UTC-5 | UTC-5 | −14.5 hours | |
| MST Mountain Standard Time · UTC-7 | UTC-7 | −16.5 hours | |
| PST Pacific Standard Time · UTC-8 | UTC-8 | −17.5 hours | |
| HST Hawaii-Aleutian Standard Time · UTC-10 | UTC-10 | −19.5 hours |
Frequently asked questions
What is ACST?
ACST stands for Australian Central Standard Time, UTC+9:30.
Which countries use ACST?
Australia.
What is the difference between ACST and ACDT?
ACST (UTC+9:30) is the standard time, used in winter. ACDT (UTC+10:30) is the daylight saving time, one hour ahead, used in summer.