ACST to AEST converter

Australian Central Time (Adelaide) to Australian Eastern Time (Sydney, Melbourne, Canberra).

ACST10:37 AMSat 31 Oct 2026

→

AEST11:07 AMSat 31 Oct 2026

AEST is 30 min ahead of ACST.

Pick a time in ACST

⇄ AEST to ACST

9:00 AM ACST = 9:30 AM AEST same day

Best time to meet

The best time to meet is between 9:00 AM and 5:00 PM ACST, which is 9:30 AM to 5:30 PM AEST. Both sides are then inside 9 AM to 5 PM.

ACST to AEST time table

For 31 Oct 2026. Green rows: both sides between 9 AM and 5 PM.

ACST	AEST
12:00 AM ACST	12:30 AM AEST
1:00 AM ACST	1:30 AM AEST
2:00 AM ACST	2:30 AM AEST
3:00 AM ACST	3:30 AM AEST
4:00 AM ACST	4:30 AM AEST
5:00 AM ACST	5:30 AM AEST
6:00 AM ACST	6:30 AM AEST
7:00 AM ACST	7:30 AM AEST
8:00 AM ACST	8:30 AM AEST
9:00 AM ACST	9:30 AM AEST
10:00 AM ACST	10:30 AM AEST
11:00 AM ACST	11:30 AM AEST
12:00 PM ACST	12:30 PM AEST
1:00 PM ACST	1:30 PM AEST
2:00 PM ACST	2:30 PM AEST
3:00 PM ACST	3:30 PM AEST
4:00 PM ACST	4:30 PM AEST
5:00 PM ACST	5:30 PM AEST
6:00 PM ACST	6:30 PM AEST
7:00 PM ACST	7:30 PM AEST
8:00 PM ACST	8:30 PM AEST
9:00 PM ACST	9:30 PM AEST
10:00 PM ACST	10:30 PM AEST
11:00 PM ACST	11:30 PM AEST

Quick answers

9:00 AM ACST = 9:30 AM AEST
12:00 PM ACST = 12:30 PM AEST
3:00 PM ACST = 3:30 PM AEST
5:00 PM ACST = 5:30 PM AEST
9:00 AM AEST = 8:30 AM ACST
12:00 PM AEST = 11:30 AM ACST
5:00 PM AEST = 4:30 PM ACST

Does the gap change during the year?

Yes, because of daylight saving. Until 4 Apr 2027: AEST is 30 min ahead of ACST. From 4 Apr 2027 to 4 Apr 2027: AEST is 30 min behind ACST. From 4 Apr 2027 to 3 Oct 2027: AEST is 30 min ahead of ACST. From 3 Oct 2027 to 3 Oct 2027: AEST is 1 h 30 min ahead of ACST. From 3 Oct 2027 to 2 Apr 2028: AEST is 30 min ahead of ACST.

ACST next changes its clocks on 4 Apr 2027 (back 1 h, to UTC+9:30), then on 3 Oct 2027 (forward 1 h, to UTC+10:30). AEST next changes its clocks on 4 Apr 2027 (back 1 h, to UTC+10), then on 3 Oct 2027 (forward 1 h, to UTC+11).

About ACST and AEST

ACST here means Australian Central Time, the clock in Adelaide. Right now it is UTC+10:30. Strictly, ACST is the winter name; in summer these places use ACDT. This page follows their real clock all year.

AEST here means Australian Eastern Time, the clock in Sydney, Melbourne, Canberra. Right now it is UTC+11. Strictly, AEST is the winter name; in summer these places use AEDT. This page follows their real clock all year.

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