About Australian Central Time
- Standard offset
- UTC+9:30
- Daylight offset
- UTC+10:30
- Abbreviations
- ACST, ACDT
- Observes DST
- Yes
Used in: Australia.
Central Australia keeps a half-hour clock, thirty minutes behind the eastern seaboard. The "Central" label hides a split, South Australia springs forward for summer while the Northern Territory never does, so the two halves of the zone drift an hour apart for part of the year.
Daylight saving time
Australian Central Time observes daylight saving time. The next transition is on Sunday, October 4, 2026, when clocks spring forward from ACST to ACDT.
See the daylight saving time page for transition dates across every time zone.
Daylight today
Sun times at the representative location for Australian Central Time.
- Sunrise
- 7:18 AM
- Sunset
- 5:12 PM
- Day length
- 9h 55m
Major cities in Australian Central Time
The current local time in these cities matches Australian Central Time.
Browse all cities to see the current local time anywhere.
Convert Australian Central Time to
Frequently asked questions
- What is Australian Central Time (ACST)?
- Australian Central Time (ACST) is UTC+9:30, shifting to UTC+10:30 in summer — a half-hour offset for South Australia and the Northern Territory.
- What is ACST in UTC?
- ACST is UTC+9:30 in standard time and UTC+10:30 during daylight saving time.
- Does Australian Central Time observe daylight saving time?
- Yes. The next change is on October 4, 2026, when clocks spring forward from ACST to ACDT.