ACST to Melbourne to Brisbane to Los Angeles to Auckland Time Converter
South Australia is on daylight saving time: ACDT (UTC+10:30) until Sun, Apr 4, 2027.
The Northern Territory stays on ACST (UTC+9:30).
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Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
9:30 pm21:30 ACST (UTC+9:30), Nov 14, 2026 = 11:00 pm23:00 AEDT (UTC+11), Nov 14, 2026 = 10:00 pm22:00 AEST (UTC+10), Nov 14, 2026 = 4:00 am04:00 PST (UTC-8), Nov 14, 2026 = 1:00 am01:00 NZDT (UTC+13), Nov 15, 2026
ACST is 1 hour and 30 minutes behind Melbourne. ACST is 30 minutes behind Brisbane. ACST is 17 hours and 30 minutes ahead of Los Angeles. ACST is 3 hours and 30 minutes behind Auckland.
How the time difference changes
ACST to Melbourne
Depending on seasonal clock changes, ACST is 30 minutes behind Melbourne or ACST is 1 hour and 30 minutes behind Melbourne.
Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in ACST correspond to 9:30 am to 6:30 pm in Melbourne or working hours of 9:00 am to 6:00 pm in ACST correspond to 10:30 am to 7:30 pm in Melbourne.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in ACST correspond to 09:30 to 18:30 in Melbourne or working hours of 09:00 to 18:00 in ACST correspond to 10:30 to 19:30 in Melbourne.
ACST to Brisbane
ACST is 30 minutes behind Brisbane year-round.
Working hours of 9:00 am to 6:00 pm in ACST correspond to 9:30 am to 6:30 pm in Brisbane.Working hours of 09:00 to 18:00 in ACST correspond to 09:30 to 18:30 in Brisbane.
ACST to Los Angeles
For most of the year, ACST is 16 hours and 30 minutes ahead of Los Angeles. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, ACST is 17 hours and 30 minutes ahead of Los Angeles.
For most of the year, working hours of 9:00 am to 6:00 pm in ACST correspond to 4:30 pm (previous day) to 1:30 am in Los Angeles. At other times of the year, working hours of 9:00 am to 6:00 pm in ACST correspond to 3:30 pm (previous day) to 12:30 am in Los Angeles.For most of the year, working hours of 09:00 to 18:00 in ACST correspond to 16:30 (previous day) to 01:30 in Los Angeles. At other times of the year, working hours of 09:00 to 18:00 in ACST correspond to 15:30 (previous day) to 00:30 in Los Angeles.
ACST to Auckland
Depending on seasonal clock changes, ACST is 2 hours and 30 minutes behind Auckland or ACST is 3 hours and 30 minutes behind Auckland.
Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in ACST correspond to 11:30 am to 8:30 pm in Auckland or working hours of 9:00 am to 6:00 pm in ACST correspond to 12:30 pm to 9:30 pm in Auckland.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in ACST correspond to 11:30 to 20:30 in Auckland or working hours of 09:00 to 18:00 in ACST correspond to 12:30 to 21:30 in Auckland.
Compare ACST time with Melbourne, Brisbane, Los Angeles, and Auckland time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Australian Central Standard Time is 1 hour and 30 minutes behind AEDT (Australian Eastern Daylight Time). Australian Central Standard Time is 30 minutes behind AEST (Australian Eastern Standard Time). Australian Central Standard Time is 17 hours and 30 minutes ahead of PST (Pacific Standard Time). Australian Central Standard Time is 3 hours and 30 minutes behind NZDT (New Zealand Daylight Time).
9:30 pm21:30 in ACST is 11:00 pm23:00 in Melbourne, Australia and is 10:00 pm22:00 in Brisbane, Australia and is 4:00 am04:00 in Los Angeles, CA, USA and is 1:00 am01:00 in Auckland, New Zealand (next day)
ACST to Melbourne call time
Best time for a conference call or a meeting is between 9am-4:30pm09:00-16:30 in ACST which corresponds to 10:30am-6pm10:30-18:00 in Melbourne.
ACST to Brisbane call time
Best time for a conference call or a meeting is between 9am-5:30pm09:00-17:30 in ACST which corresponds to 9:30am-6pm09:30-18:00 in Brisbane.
ACST to Los Angeles call time
Best time for a conference call or a meeting is between 9am-11:30am09:00-11:30 in ACST which corresponds to 3:30pm-6pm15:30-18:00 in Los Angeles (previous day).
ACST to Auckland call time
Best time for a conference call or a meeting is between 9am-2:30pm09:00-14:30 in ACST which corresponds to 12:30pm-6pm12:30-18:00 in Auckland.
9:30 pm21:30 Australian Central Standard Time (ACST). Offset UTC +9:30 hours
11:00 pm23:00 AEDT (Australian Eastern Daylight Time) (Melbourne, Australia). Offset UTC +11:00 hours
10:00 pm22:00 AEST (Australian Eastern Standard Time) (Brisbane, Australia). Offset UTC +10:00 hours
4:00 am04:00 PST (Pacific Standard Time) (Los Angeles, CA, USA). Offset UTC -8:00 hours
1:00 am01:00 NZDT (New Zealand Daylight Time) (Auckland, New Zealand). Offset UTC +13:00 hours
9:30 pm21:30 ACST / 11:00 pm23:00 Melbourne, Australia / 10:00 pm22:00 Brisbane, Australia / 4:00 am04:00 Los Angeles, CA, USA / 1:00 am01:00 Auckland, New Zealand (next day)
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| ACST | Melbourne, Australia | Brisbane, Australia | Los Angeles, CA, USA | Auckland, New Zealand |
|---|---|---|---|---|
| 1:30am | 12:30am | 6:30am previous day | 3:30am | |
| 2:30am | 1:30am | 7:30am previous day | 4:30am | |
| 3:30am | 2:30am | 8:30am previous day | 5:30am | |
| 4:30am | 3:30am | 9:30am previous day | 6:30am | |
| 5:30am | 4:30am | 10:30am previous day | 7:30am | |
| 6:30am | 5:30am | 11:30am previous day | 8:30am | |
| 7:30am | 6:30am | 12:30pm previous day | 9:30am | |
| 8:30am | 7:30am | 1:30pm previous day | 10:30am | |
| 9:30am | 8:30am | 2:30pm previous day | 11:30am | |
| 10:30am | 9:30am | 3:30pm previous day | 12:30pm | |
| 11:30am | 10:30am | 4:30pm previous day | 1:30pm | |
| 12:30pm | 11:30am | 5:30pm previous day | 2:30pm | |
| 1:30pm | 12:30pm | 6:30pm previous day | 3:30pm | |
| 2:30pm | 1:30pm | 7:30pm previous day | 4:30pm | |
| 3:30pm | 2:30pm | 8:30pm previous day | 5:30pm | |
| 4:30pm | 3:30pm | 9:30pm previous day | 6:30pm | |
| 5:30pm | 4:30pm | 10:30pm previous day | 7:30pm | |
| 6:30pm | 5:30pm | 11:30pm previous day | 8:30pm | |
| 7:30pm | 6:30pm | 12:30am | 9:30pm | |
| 8:30pm | 7:30pm | 1:30am | 10:30pm | |
| 9:30pm | 8:30pm | 2:30am | 11:30pm | |
| 10:30pm | 9:30pm | 3:30am | 12:30am next day | |
| 11:30pm | 10:30pm | 4:30am | 1:30am next day | |
| 12:30am next day | 11:30pm | 5:30am | 2:30am next day | |
| 01:30 | 00:30 | 06:30 previous day | 03:30 | |
| 02:30 | 01:30 | 07:30 previous day | 04:30 | |
| 03:30 | 02:30 | 08:30 previous day | 05:30 | |
| 04:30 | 03:30 | 09:30 previous day | 06:30 | |
| 05:30 | 04:30 | 10:30 previous day | 07:30 | |
| 06:30 | 05:30 | 11:30 previous day | 08:30 | |
| 07:30 | 06:30 | 12:30 previous day | 09:30 | |
| 08:30 | 07:30 | 13:30 previous day | 10:30 | |
| 09:30 | 08:30 | 14:30 previous day | 11:30 | |
| 10:30 | 09:30 | 15:30 previous day | 12:30 | |
| 11:30 | 10:30 | 16:30 previous day | 13:30 | |
| 12:30 | 11:30 | 17:30 previous day | 14:30 | |
| 13:30 | 12:30 | 18:30 previous day | 15:30 | |
| 14:30 | 13:30 | 19:30 previous day | 16:30 | |
| 15:30 | 14:30 | 20:30 previous day | 17:30 | |
| 16:30 | 15:30 | 21:30 previous day | 18:30 | |
| 17:30 | 16:30 | 22:30 previous day | 19:30 | |
| 18:30 | 17:30 | 23:30 previous day | 20:30 | |
| 19:30 | 18:30 | 00:30 | 21:30 | |
| 20:30 | 19:30 | 01:30 | 22:30 | |
| 21:30 | 20:30 | 02:30 | 23:30 | |
| 22:30 | 21:30 | 03:30 | 00:30 next day | |
| 23:30 | 22:30 | 04:30 | 01:30 next day | |
| 00:30 next day | 23:30 | 05:30 | 02:30 next day |
Australian Central Standard Time
Offset: ACST is 9 hours and 30 minutes ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Australia
Principal Cities: The largest city in the ACST time zone is Adelaide in Australia, with about 1.469 million people. Other major cities in this time zone include Darwin, Palmerston, Alice Springs, Mount Gambier.
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Australian Central Daylight Time (ACDT).
End: Australian Central Standard Time (ACST) ended on Sunday, October 4, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, October 4, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the first Sunday of October.
Start: Australian Central Standard Time (ACST) starts on Sunday, April 4, 2027 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, April 4, 2027, 2:00 am02:00. Standard time starts annually on the first Sunday of April.
See Australia daylight saving time and upcoming clock changes worldwide.
ACST representations, usage and related time zones
- +0930 - basic
- +09:30 - extended
- +0930 - sign character (+) followed by a four digit time providing hours (09) and minutes (30) of the offset. Indicates an offset of nine hours and thirty minutes to the east of the zero meridian.
- Australia/Adelaide
- Australia/Broken_Hill
- Australia/Darwin
- Australia/North
- Australia/South
- Australia/Yancowinna
Melbourne Time Zone and Facts
Time Zone
AEST – Australian Eastern Standard Time, UTC+10 (standard time)
Melbourne Facts
Brisbane Time Zone and Facts
Time Zone
Brisbane Facts
Los Angeles Time Zone and Facts
Time Zone
PDT – Pacific Daylight Time, UTC-7 (daylight saving time)
Los Angeles Facts
Auckland Time Zone and Facts
Time Zone
NZST – New Zealand Standard Time, UTC+12 (standard time)
