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DateAlmanac

What is ACST in AEST?

Australian Eastern Time is 30 minutes ahead

Australian Central Time is on UTC+9:30 and Australian Eastern Time is on UTC+10:00 right now. That gap holds all year, because both zones change their clocks together.

Time in Adelaide
10:22:56 PM
Time in Sydney
10:52:56 PM
Difference
+0:30 h
Next clock change
October 4, 2026

Convert a time

AEST — Australian Eastern Time

10:30 pm

AEST, Fri

Daylight saving

Australian Central Time

Sunday, October 4, 2026

Clocks go forward one hour — 2:00 am becomes 3:00 am local time, and the zone is on ACDT after that.

Australian Eastern Time

Sunday, October 4, 2026

Clocks go forward one hour — 2:00 am becomes 3:00 am local time, and the zone is on AEDT after that.

ACST to AEST conversion table

Every hour of Friday, September 25, 2026, converted from Australian Central Time to Australian Eastern Time.

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

Scheduling between the two

Working hours overlap from 9:00 am to 6:00 pm ACST, which is 9:30 am to 6:30 pm AEST. Anything inside that window falls in the normal working day at both ends.

Australian Central Time (ACST) is used in South Australia and the Northern Territory, on a half-hour offset from the east coast

Australian Eastern Time (AEST) is used in Melbourne, Canberra and Brisbane. Queensland stays on AEST all year while the southern states move to AEDT.

Other conversions