AEST to Adelaide Time Converter
ACDT is 30 minutes behind AEDT. 9:00 AM AEDT = 8:30 AM ACDT.
ACDT is 30 minutes behind AEDT. To convert AEST to Adelaide Time, subtract 30 minutes from the AEST time: 9:00 AM AEDT = 8:30 AM ACDT.
AEST (Australian Eastern Time) is used in New South Wales, Victoria, Tasmania, ACT; Queensland (Brisbane) all year. Adelaide Time (Adelaide time) is used in Adelaide, Australia.
Queensland stays on AEST all year. AEST (Australian Eastern Standard Time) is not in force right now: New South Wales is currently on AEDT. This page uses whichever name applies on the date you pick, so the numbers below say AEDT.
AEST to Adelaide Time time conversion table
AEST to Adelaide Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| AEST | Adelaide Time | Day |
|---|---|---|
| 12:00 AM AEDT | 11:30 PM ACDT | previous day |
| 1:00 AM AEDT | 12:30 AM ACDT | night |
| 2:00 AM AEDT | 1:30 AM ACDT | night |
| 3:00 AM AEDT | 2:30 AM ACDT | night |
| 4:00 AM AEDT | 3:30 AM ACDT | night |
| 5:00 AM AEDT | 4:30 AM ACDT | night |
| 6:00 AM AEDT | 5:30 AM ACDT | night |
| 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 | work hours |
| 11:00 AM AEDT | 10:30 AM ACDT | work hours |
| 12:00 PM AEDT | 11:30 AM ACDT | work hours |
| 1:00 PM AEDT | 12:30 PM ACDT | work hours |
| 2:00 PM AEDT | 1:30 PM ACDT | work hours |
| 3:00 PM AEDT | 2:30 PM ACDT | work hours |
| 4:00 PM AEDT | 3:30 PM ACDT | work hours |
| 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 | night |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert AEST to Adelaide Time
Subtract 30 minutes from the AEST time to get Adelaide Time.
Example: 9:00 AM AEDT = 8:30 AM ACDT.
Across midnight: 12:00 AM AEDT = 11:30 PM ACDT (previous day). The date changes, so always check the day as well as the hour.
Time difference between AEST and Adelaide Time
The time difference between AEST and Adelaide Time is 30 minutes all year – ACDT is behind AEDT.
AEST and Adelaide Time during daylight saving time
- AEST next changes on 4 Apr 2027: clocks go back one hour at 02:59 local time, from AEDT (UTC+11) to AEST (UTC+10).
- Adelaide Time next changes on 4 Apr 2027: clocks go back one hour at 02:59 local time, from ACDT (UTC+10:30) to ACST (UTC+9:30).
Best time for a meeting between AEST and Adelaide Time
AEST and Adelaide Time share 7 hours 30 minutes of the 9 AM–5 PM working day. Any time between 9:30 AM and 5:00 PM AEDT lands between 9:00 AM and 4:30 PM ACDT, inside working hours for both.
AEST to Adelaide Time FAQ
What is the time difference between AEST and Adelaide Time?
ACDT is 30 minutes behind AEDT all year. 9:00 AM AEDT = 8:30 AM ACDT.
What is 9 AM AEST in Adelaide Time?
9:00 AM AEDT is 8:30 AM ACDT.
What is 12 PM (noon) AEST in Adelaide Time?
12:00 PM AEDT is 11:30 AM ACDT.
Is Adelaide Time ahead of or behind AEST?
ACDT is 30 minutes behind AEDT, so it is earlier in Adelaide Time than in AEST.
Does AEST change for daylight saving time?
Yes. AEST next changes on 4 Apr 2027, when clocks go back one hour from AEDT to AEST.
Does Adelaide Time change for daylight saving time?
Yes. Adelaide Time next changes on 4 Apr 2027, when clocks go back one hour from ACDT to ACST.
What is the best time for a meeting between AEST and Adelaide Time?
AEST and Adelaide Time share 7 hours 30 minutes of the 9 AM–5 PM working day. Any time between 9:30 AM and 5:00 PM AEDT lands between 9:00 AM and 4:30 PM ACDT, inside working hours for both.
Related conversions
Convert Adelaide Time to AEST
Convert AEST to other time zones
Convert other time zones to Adelaide Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.