Time-zone abbreviation
ACST — Australian Central Standard Time (UTC+9:30)
ACST stands for Australian Central Standard Time, nine and a half hours ahead of UTC (UTC+9:30). South Australia shifts to Australian Central Daylight Time (ACDT, UTC+10:30) in summer; the Northern Territory stays on ACST year-round.
Last updated · Maintained by Clockjumper
Current time in Australian Central Standard Time
1:02 PM
Friday, Jul 3
Australia/Adelaide
Quick facts
- Standard offset
- UTC+9:30 (ACST)
- Daylight saving
- Yes — shifts to ACDT (UTC+10:30)
- Next clock change
- Where it's used
- Used in South Australia and the Northern Territory. Darwin does not observe DST.
Convert ACST to your time zone
Need to convert a specific time? Use the Clockjumper converter, or jump to one of these popular ACST conversions:
Frequently asked questions
- What does ACST stand for?
- ACST stands for Australian Central Standard Time.
- What is the UTC offset of ACST?
- Australian Central Standard Time is UTC+9:30, shifting to UTC+10:30 (ACDT) when daylight saving is in effect.
- Does ACST observe daylight saving time?
- Yes — Australian Central Standard Time shifts to ACDT (UTC+10:30) during summer. The next clock change is on October 4, 2026.