ACST to AST Converter

AST is 13h 30m behind ACST. When it's 12:00 PM ACST, it's 10:30 PM (−1 day) AST.

From

ACST · UTC+9:30

1:39:55PM

Australian Central Standard Time

e.g. Adelaide, Darwin

To

AST · UTC-4

12:09:55AM

Atlantic Standard Time

e.g. Halifax, Puerto Rico

Open in World ClockAST → ACST
9:00 AM ACST=7:30 PM(−1 day) AST
12:00 PM ACST=10:30 PM(−1 day) AST
5:00 PM ACST=3:30 AM AST

Hourly conversion (ACST → AST)

ACSTAST
12:00 AM10:30 AM(−1 day)
1:00 AM11:30 AM(−1 day)
2:00 AM12:30 PM(−1 day)
3:00 AM1:30 PM(−1 day)
4:00 AM2:30 PM(−1 day)
5:00 AM3:30 PM(−1 day)
6:00 AM4:30 PM(−1 day)
7:00 AM5:30 PM(−1 day)
8:00 AM6:30 PM(−1 day)
9:00 AM7:30 PM(−1 day)
10:00 AM8:30 PM(−1 day)
11:00 AM9:30 PM(−1 day)
12:00 PM10:30 PM(−1 day)
1:00 PM11:30 PM(−1 day)
2:00 PM12:30 AM
3:00 PM1:30 AM
4:00 PM2:30 AM
5:00 PM3:30 AM
6:00 PM4:30 AM
7:00 PM5:30 AM
8:00 PM6:30 AM
9:00 PM7:30 AM
10:00 PM8:30 AM
11:00 PM9:30 AM

Shaded rows are within standard working hours (8am–6pm) on both sides.

More ACST conversions

Frequently asked questions

What is the time difference between ACST and AST?
AST is 13h 30m behind ACST. ACST is UTC+9:30 and AST is UTC-4.
What is 12:00 PM ACST in AST?
12:00 PM ACST is 10:30 PM (−1 day) AST.
Does ACST change for daylight saving time?
ACST is a fixed offset of UTC+9:30 and does not itself change for daylight saving time.