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ACDT — Australian Central Daylight Time

ACDT is Australian Central Daylight Time, UTC+10:30. It is the summer time of ACST (UTC+9:30), one hour later. ACDT is in use now: it started on Sunday 4 October 2026 and ends on Sunday 4 April 2027 at 03:00, when clocks go back to ACST.

Right now Adelaide is on ACDT.

Zones that use ACDT in summerCountryNowOffset
AdelaideAustralia/AdelaideAustralia15:23UTC+10:30 ACDT

Questions about ACDT

What does ACDT stand for?
ACDT stands for Australian Central Daylight Time, UTC+10:30.
Is ACDT the same as ACST?
No. ACST (UTC+9:30) is the winter time and ACDT (UTC+10:30) the summer time of the same places, one hour apart. ACDT is in use now: it started on Sunday 4 October 2026 and ends on Sunday 4 April 2027 at 03:00, when clocks go back to ACST.
Is it ACDT or ACST right now?
Right now Adelaide is on ACDT (UTC+10:30).

Convert Australian Central Time (ACST/ACDT)

These pages follow the summer switch automatically: in summer they show ACDT.