AEST to ACST
Convert Australian Eastern Time — Sydney to Australian Central Time — Adelaide — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Sydney, it's 8:30 AM in Adelaide. Adelaide is 0½ hours behind Sydney. Use the converter above to turn any AEST time into ACST, or scan the hour-by-hour table below for the full day.
AEST to ACST at a glance
Planning a meeting between Sydney and Adelaide
Planning a call between Sydney and Adelaide? The best overlap during a standard 9-to-5 workday runs 9:30 AM–5:00 PM AEST (9:00 AM–4:30 PM ACST). Aim for that window to reach both sides during business hours.
Hour-by-hour: Sydney to Adelaide
A full day mapped from AEST to ACST.
Frequently asked
Is Adelaide ahead of or behind Sydney?
Adelaide is 0½ hours behind Sydney.
What is 12:00 PM AEST in ACST?
12:00 PM in Sydney is 11:30 AM in Adelaide.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so AEST and ACST automatically reflect the correct daylight-saving offset for the current date.