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DateAlmanac

What is AEST in ACST?

Australian Central Time is 30 minutes behind

Australian Eastern Time is on UTC+11:00 and Australian Central Time is on UTC+10:30 right now. Both are on daylight saving, so their clocks read AEDT and ACDT. That gap holds all year, because both zones change their clocks on the same dates.

Convert a time

ACDT — Australian Central Time

8:30 pm

ACDT, Fri

Time in Sydney
9:00:49 PM
Time in Adelaide
8:30:49 PM
Difference
−0:30 h
Next clock change
April 4, 2027

Daylight saving

Australian Eastern Time

Sunday, April 4, 2027

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

Australian Central Time

Sunday, April 4, 2027

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

AEST to ACST conversion table

Every hour of Friday, November 13, 2026, converted from Australian Eastern Time to Australian Central Time. 1 of the 24 hours fall on a different calendar day in Adelaide, which is marked.

12:00 am AEDT
11:30 pm ACDT−1 day
1:00 am AEDT
12:30 am ACDT
2:00 am AEDT
1:30 am ACDT
3:00 am AEDT
2:30 am ACDT
4:00 am AEDT
3:30 am ACDT
5:00 am AEDT
4:30 am ACDT
6:00 am AEDT
5:30 am ACDT
7:00 am AEDT
6:30 am ACDT
8:00 am AEDT
7:30 am ACDT
9:00 am AEDT
8:30 am ACDT
10:00 am AEDT
9:30 am ACDT
11:00 am AEDT
10:30 am ACDT
12:00 pm AEDT
11:30 am ACDT
1:00 pm AEDT
12:30 pm ACDT
2:00 pm AEDT
1:30 pm ACDT
3:00 pm AEDT
2:30 pm ACDT
4:00 pm AEDT
3:30 pm ACDT
5:00 pm AEDT
4:30 pm ACDT
6:00 pm AEDT
5:30 pm ACDT
7:00 pm AEDT
6:30 pm ACDT
8:00 pm AEDT
7:30 pm ACDT
9:00 pm AEDT
8:30 pm ACDT
10:00 pm AEDT
9:30 pm ACDT
11:00 pm AEDT
10:30 pm ACDT

Scheduling between the two

Working hours overlap from 10:00 am to 6:00 pm AEDT, which is 9:30 am to 5:30 pm ACDT. Anything inside that window falls in the normal working day at both ends.

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

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

Other conversions