Australian Central Daylight Time (ACST)

Australian Central Daylight Time (ACST) is a time zone that is ahead of Coordinated Universal Time (UTC) by 09:30 hours. During Daylight Saving Time, the offset changes to UTC+10:30.

Major cities using this timezone include Adelaide. These cities follow Australian Central for their local time, making it easy to coordinate meetings and communications across the region.

Australian Central Daylight Time observes Daylight Saving Time (DST). The next clock change will occur on Saturday, October 3, 2026, when clocks will spring forward (move ahead) by one hour.