AWST to ACST to AEST Time Converter
ACST is not used on this date
This converter keeps ACST at UTC+9:30. Adelaide uses ACDT (UTC+10:30) on this date. Open the ACDT converter, or choose Adelaide, Adelaide Hills, or Mount Gambier for city-specific time.Eastern Australia is on daylight saving time: AEDT (UTC+11) until Sun, Apr 4, 2027.
Queensland stays on AEST (UTC+10).
Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
8:00 pm20:00 AWST (UTC+8), Oct 23, 2026 = 9:30 pm21:30 ACST (UTC+9:30), Oct 23, 2026 = 10:00 pm22:00 AEST (UTC+10), Oct 23, 2026
AWST is 1 hour and 30 minutes behind ACST. AWST is 2 hours behind AEST.
How the time difference changes
AWST to ACST
AWST is 1 hour and 30 minutes behind ACST year-round.
Working hours of 9:00 am to 6:00 pm in AWST correspond to 10:30 am to 7:30 pm in ACST.Working hours of 09:00 to 18:00 in AWST correspond to 10:30 to 19:30 in ACST.
AWST to AEST
AWST is 2 hours behind AEST year-round.
Working hours of 9:00 am to 6:00 pm in AWST correspond to 11:00 am to 8:00 pm in AEST.Working hours of 09:00 to 18:00 in AWST correspond to 11:00 to 20:00 in AEST.
Compare AWST time with ACST and AEST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Australian Western Standard Time is 1 hour and 30 minutes behind Australian Central Standard Time. Australian Western Standard Time is 2 hours behind Australian Eastern Standard Time.
8:00 pm20:00 in AWST is 9:30 pm21:30 in ACST and is 10:00 pm22:00 in AEST
AWST to ACST call time
Best time for a conference call or a meeting is between 9am-4:30pm09:00-16:30 in AWST which corresponds to 10:30am-6pm10:30-18:00 in ACST
AWST to AEST call time
Best time for a conference call or a meeting is between 9am-4pm09:00-16:00 in AWST which corresponds to 11am-6pm11:00-18:00 in AEST
8:00 pm20:00 Australian Western Standard Time (AWST). Offset UTC +8:00 hours
9:30 pm21:30 Australian Central Standard Time (ACST). Offset UTC +9:30 hours
10:00 pm22:00 Australian Eastern Standard Time (AEST). Offset UTC +10:00 hours
8:00 pm20:00 AWST / 9:30 pm21:30 ACST / 10:00 pm22:00 AEST
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.
| AWST | ACST | AEST |
|---|---|---|
| 1:30am | 2:00am | |
| 2:30am | 3:00am | |
| 3:30am | 4:00am | |
| 4:30am | 5:00am | |
| 5:30am | 6:00am | |
| 6:30am | 7:00am | |
| 7:30am | 8:00am | |
| 8:30am | 9:00am | |
| 9:30am | 10:00am | |
| 10:30am | 11:00am | |
| 11:30am | 12:00pm | |
| 12:30pm | 1:00pm | |
| 1:30pm | 2:00pm | |
| 2:30pm | 3:00pm | |
| 3:30pm | 4:00pm | |
| 4:30pm | 5:00pm | |
| 5:30pm | 6:00pm | |
| 6:30pm | 7:00pm | |
| 7:30pm | 8:00pm | |
| 8:30pm | 9:00pm | |
| 9:30pm | 10:00pm | |
| 10:30pm | 11:00pm | |
| 11:30pm | 12:00am next day | |
| 12:30am next day | 1:00am next day | |
| 01:30 | 02:00 | |
| 02:30 | 03:00 | |
| 03:30 | 04:00 | |
| 04:30 | 05:00 | |
| 05:30 | 06:00 | |
| 06:30 | 07:00 | |
| 07:30 | 08:00 | |
| 08:30 | 09:00 | |
| 09:30 | 10:00 | |
| 10:30 | 11:00 | |
| 11:30 | 12:00 | |
| 12:30 | 13:00 | |
| 13:30 | 14:00 | |
| 14:30 | 15:00 | |
| 15:30 | 16:00 | |
| 16:30 | 17:00 | |
| 17:30 | 18:00 | |
| 18:30 | 19:00 | |
| 19:30 | 20:00 | |
| 20:30 | 21:00 | |
| 21:30 | 22:00 | |
| 22:30 | 23:00 | |
| 23:30 | 00:00 next day | |
| 00:30 next day | 01:00 next day |
Australian Western Standard Time
Offset: AWST is 8 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Australia
Principal Cities: The largest city in the AWST time zone is Perth in Australia, with about 2.384 million people. Other major cities in this time zone include Mandurah, Bunbury, Geraldton, Albany.
Daylight Saving: Clocks in Australian Western Standard Time (AWST) do not change for daylight saving time, so AWST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
AWST representations, usage and related time zones
- +08 - basic short
- +0800 - basic
- +08:00 - extended
- +0800 - sign character (+) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the east of the zero meridian.
- Hotel - Military abbreviation for AWST
- H - short form of 'Hotel'
- Australia/Perth
- Australia/West
- ACT - ASEAN Common Time
- AWST - Australian Western Standard Time
- BNT - Brunei Darussalam Time
- CAST - Casey Time
- CHOT - Choibalsan Time
- CST - China Standard Time
- H - Hotel Time Zone
- HKT - Hong Kong Time
- HOVST - Hovd Summer Time
- IRKT - Irkutsk Time
- KRAST - Krasnoyarsk Summer Time
- MYT - Malaysia Time
- PHT - Philippine Time
- SGT - Singapore Time
- ULAT - Ulaanbaatar Time
- WITA - Central Indonesian Time
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.
Today the lighter areas are on UTC+10:30 (ACDT).
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
Australian Eastern Standard Time
Offset: AEST is 10 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Australia
Principal Cities: The largest city in the AEST time zone is Sydney in Australia, with about 5.639 million people. Other major cities in this time zone include Melbourne, Brisbane, Gold Coast, Newcastle.
Today the lighter areas are on UTC+11 (AEDT).
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Australian Eastern Daylight Time (AEDT).
End: Australian Eastern Standard Time (AEST) 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 Eastern Standard Time (AEST) 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.
Australian Eastern Standard Time (AEST) is used in Queensland, Victoria, Tasmania, New South Wales (except Broken Hill), Australian Capital Territory and in folling major cities Brisbane, Sydney, Melbourne, Hobart, Canberra
Only part of Australia observe daylight saving. It is used in New South Wales, Victoria, South Australia, Tasmania, and the Australian Capital Territory. Daylight saving is not observed in Queensland, Western Australia or the Northern Territory.
AEST representations, usage and related time zones
- +10 - basic short
- +1000 - basic
- +10:00 - extended
- +1000 - sign character (+) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates an offset of ten hours to the east of the zero meridian.
- Kilo - Military abbreviation for AEST
- K - short form of 'Kilo'
- Antarctica/Macquarie
- Australia/ACT
- Australia/Brisbane
- Australia/Canberra
- Australia/Currie
- Australia/Hobart
- Australia/Lindeman
- Australia/Melbourne
- Australia/NSW
- Australia/Queensland
- Australia/Sydney
- Australia/Tasmania
- Australia/Victoria
- AEST - Australian Eastern Standard Time
- CHUT - Chuuk Time
- ChST - Chamorro Standard Time
- K - Kilo Time Zone
- KDT - Korea Daylight Time
- PGT - Papua New Guinea Time
- VLAT - Vladivostok Time
- YAKST - Yakutsk Summer Time
- YAPT - Yap Time