From
AST / ADT
Time Converter
AST to ACST Time Converter
Convert Atlantic Time to Australian Central Time with a live clock and clean permalinks.
To
ACST / ACDT
When it is 7:30 AM in Atlantic Time, it is 9:00 PM in Australian Central Time.
AST to ACST at a glance
Australian Central Time is 13 hours 30 minutes ahead of Atlantic Time. If someone gives you a time in Atlantic Time, move the clock by 13 hours 30 minutes to read it in Australian Central Time. A 9:00 AM start in Halifax becomes 10:30 PM in Adelaide.
What Atlantic Time covers
Atlantic Time is used in eastern Canada and parts of the Caribbean. Halifax is a common city reference for it. It matters when scheduling across North America and island markets farther east.
What Australian Central Time covers
Australian Central Time is used in Adelaide and surrounding regions, with a half-hour offset from many nearby markets. It matters when your schedule includes South Australia or mixed national coverage across Australia.
Quick answers
What is the time difference between AST and ACST?
Australian Central Time is 13 hours 30 minutes ahead of Atlantic Time.
What happens to a 3:00 PM meeting in AST?
It lands at 4:30 AM in ACST.
Does daylight saving time matter for AST to ACST?
Atlantic Time and Australian Central Time are shown using the offsets that are active right now, so the result already reflects any daylight saving change in effect today.