ACST — Australian Central Standard Time

ACST

Australian Central Standard Time

UTC+9:30 Standard time

Central Australia (winter)

Now in Adelaide:

Quick facts

Abbreviation
ACST
Full name
Australian Central Standard Time
UTC offset
UTC+9:30
Type
Standard time
Used in
Central Australia (winter)
Example zone
Australia/Adelaide

About ACST

ACST is the abbreviation for Australian Central Standard Time, a time zone offset of UTC+9:30. It applies in Central Australia (winter).

Time-zone abbreviations are convenient but not unique or official — several codes are shared by more than one zone. When precision matters, use the underlying IANA zone name (for example Australia/Adelaide) or the UTC offset UTC+9:30 instead.

Frequently asked questions

What does ACST stand for?
ACST stands for Australian Central Standard Time. It is UTC+9:30, used in Central Australia (winter).
What is the UTC offset of ACST?
ACST (Australian Central Standard Time) is UTC+9:30, meaning it is 9.5 hours ahead of Coordinated Universal Time.
Does ACST change for daylight saving time?
Regions on ACST generally keep this offset year-round rather than switching for daylight saving.

See also: all time zone abbreviations