1 AM ACST to AST

Australian Central Standard Time

Australian Central Standard Time (ACST)

ACST is 9 hours 30 minutes ahead of Universal Time (UTC+9)

↑ ↓

Atlantic Standard Time

Atlantic Standard Time (AST)

AST is 4 hours behind Universal Time (UTC-4)

ACST to AST Time Conversion

When it is 12:00 PM in ACST, it is 10:30 PM the previous day in AST.

📞There is no overlap during standard 9-to-5 business hours, so a call may need to be early or late in the day for one side.

Time difference between ACST and AST

ACST is 13 hours 30 minutes ahead of AST.

🕐 Subtract 13 hours 30 minutes from ACST time to get AST time.

ACST uses 9 hours 30 minutes ahead of Universal Time (UTC+9) and AST uses 4 hours behind Universal Time (UTC-4).

ACST to AST time conversion chart (24 hours)

Highlighted rows are overlapping 9-to-5 business hours – the best time to schedule a call between ACST and AST.

ACST Time		AST Time
12 AM ACST Time	↔	10 AM AST Time
1 AM ACST Time	↔	11 AM AST Time
2 AM ACST Time	↔	12 PM AST Time
3 AM ACST Time	↔	1 PM AST Time
4 AM ACST Time	↔	2 PM AST Time
5 AM ACST Time	↔	3 PM AST Time
6 AM ACST Time	↔	4 PM AST Time
7 AM ACST Time	↔	5 PM AST Time
8 AM ACST Time	↔	6 PM AST Time
9 AM ACST Time	↔	7 PM AST Time
10 AM ACST Time	↔	8 PM AST Time
11 AM ACST Time	↔	9 PM AST Time

ACST Time		AST Time
12 PM ACST Time	↔	10 PM AST Time
1 PM ACST Time	↔	11 PM AST Time
2 PM ACST Time	↔	12 AM AST Time
3 PM ACST Time	↔	1 AM AST Time
4 PM ACST Time	↔	2 AM AST Time
5 PM ACST Time	↔	3 AM AST Time
6 PM ACST Time	↔	4 AM AST Time
7 PM ACST Time	↔	5 AM AST Time
8 PM ACST Time	↔	6 AM AST Time
9 PM ACST Time	↔	7 AM AST Time
10 PM ACST Time	↔	8 AM AST Time
11 PM ACST Time	↔	9 AM AST Time

ACST to AST - Frequently Asked Questions

Q

What is the time difference between ACST and AST?

A

ACST is 13 hours 30 minutes ahead of AST.

Q

Is ACST ahead of or behind AST?

A

ACST is ahead of AST by 13 hours 30 minutes.

Q

When it is 9:00 AM in ACST, what time is it in AST?

A

It is 7:30 PM the previous day in AST.

Convert ACST Time to Popular Time Zones

Convert Time in Popular Time Zones to AST