AWST to AWDT to ACST to AEST Time Converter
AWDT is not used on this date
This converter uses AWST (GMT +8), the offset Perth uses on this date. Open the AWST converter.Quick answers
AWST to AWDT
The AWST and AWDT converter rows show the same time year-round.
Working hours of 9:00 am to 5:00 pm on the AWST converter row correspond to 9:00 am to 5:00 pm on the AWDT converter row.
AWST to ACST
AWST is 1 hour and 30 minutes behind ACST year-round.
Working hours of 9:00 am to 5:00 pm in AWST correspond to 10:30 am to 6:30 pm in ACST.
AWST to AEST
AWST is 2 hours behind AEST year-round.
Working hours of 9:00 am to 5:00 pm in AWST correspond to 11:00 am to 7:00 pm in AEST.
Compare AWST time with AWDT, 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 0 hours ahead of Australian Western Standard Time and 1 hour and 30 minutes behind Australian Central Standard Time and 2 hours behind Australian Eastern Standard Time
9:00 pm21:00 in AWST is 9:00 pm21:00 in AWST and is 10:30 pm22:30 in ACST and is 11:00 pm23:00 in AEST
AWST to AWST call time
Best time for a conference call or a meeting is between 9am-5pm in AWST which corresponds to 9am-5pm in AWST
AWST to ACST call time
Best time for a conference call or a meeting is between 9am-3:30pm in AWST which corresponds to 10:30am-5pm in ACST
AWST to AEST call time
Best time for a conference call or a meeting is between 9am-3pm in AWST which corresponds to 11am-5pm in AEST
9:00 pm21:00 Australian Western Standard Time (AWST). Offset UTC +8:00 hours
9:00 pm21:00 Australian Western Standard Time (AWST). Offset UTC +8:00 hours
10:30 pm22:30 Australian Central Standard Time (ACST). Offset UTC +9:30 hours
11:00 pm23:00 Australian Eastern Standard Time (AEST). Offset UTC +10:00 hours
9:00 pm21:00 AWST / 9:00 pm21:00 AWST / 10:30 pm22:30 ACST / 11:00 pm23:00 AEST
| AWST | AWST | ACST | AEST |
|---|---|---|---|
| 12am (midnight) | 12am (midnight) | 1:30 am | 2am |
| 1am | 1am | 2:30 am | 3am |
| 2am | 2am | 3:30 am | 4am |
| 3am | 3am | 4:30 am | 5am |
| 4am | 4am | 5:30 am | 6am |
| 5am | 5am | 6:30 am | 7am |
| 6am | 6am | 7:30 am | 8am |
| 7am | 7am | 8:30 am | 9am |
| 8am | 8am | 9:30 am | 10am |
| 9am | 9am | 10:30 am | 11am |
| 10am | 10am | 11:30 am | 12pm (noon) |
| 11am | 11am | 12:30 pm | 1pm |
| 12pm (noon) | 12pm (noon) | 1:30 pm | 2pm |
| 1pm | 1pm | 2:30 pm | 3pm |
| 2pm | 2pm | 3:30 pm | 4pm |
| 3pm | 3pm | 4:30 pm | 5pm |
| 4pm | 4pm | 5:30 pm | 6pm |
| 5pm | 5pm | 6:30 pm | 7pm |
| 6pm | 6pm | 7:30 pm | 8pm |
| 7pm | 7pm | 8:30 pm | 9pm |
| 8pm | 8pm | 9:30 pm | 10pm |
| 9pm | 9pm | 10:30 pm | 11pm |
| 10pm | 10pm | 11:30 pm | 12am (midnight) |
| 11pm | 11pm | 12:30 am | 1am |
| 00:00 | 00:00 | 01:30 | 02:00 |
| 01:00 | 01:00 | 02:30 | 03:00 |
| 02:00 | 02:00 | 03:30 | 04:00 |
| 03:00 | 03:00 | 04:30 | 05:00 |
| 04:00 | 04:00 | 05:30 | 06:00 |
| 05:00 | 05:00 | 06:30 | 07:00 |
| 06:00 | 06:00 | 07:30 | 08:00 |
| 07:00 | 07:00 | 08:30 | 09:00 |
| 08:00 | 08:00 | 09:30 | 10:00 |
| 09:00 | 09:00 | 10:30 | 11:00 |
| 10:00 | 10:00 | 11:30 | 12:00 |
| 11:00 | 11:00 | 12:30 | 13:00 |
| 12:00 | 12:00 | 13:30 | 14:00 |
| 13:00 | 13:00 | 14:30 | 15:00 |
| 14:00 | 14:00 | 15:30 | 16:00 |
| 15:00 | 15:00 | 16:30 | 17:00 |
| 16:00 | 16:00 | 17:30 | 18:00 |
| 17:00 | 17:00 | 18:30 | 19:00 |
| 18:00 | 18:00 | 19:30 | 20:00 |
| 19:00 | 19:00 | 20:30 | 21:00 |
| 20:00 | 20:00 | 21:30 | 22:00 |
| 21:00 | 21:00 | 22:30 | 23:00 |
| 22:00 | 22:00 | 23:30 | 00:00 |
| 23:00 | 23:00 | 00:30 | 01:00 |
Australian Western Standard Time
Offset: AWST is 8 hours ahead Greenwich Mean Time (GMT) and is used in Australia
Countries using this time zone: Australia
Principal Cities: The largest city in the AWST time zone is Perth in Australia, with about 1.897 million people. Other major cities in this time zone include Rockingham, Mandurah, Bunbury, Armadale.
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.
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 Western Daylight Time
Offset: AWDT is 9 hours ahead Greenwich Mean Time (GMT) and is used in Australia
AWDT representations, usage and related time zones
- +09 - basic short
- +0900 - basic
- +09:00 - extended
- +0900 - sign character (+) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates an offset of nine hours to the east of the zero meridian.
- India - Military abbreviation for AWDT
- I - short form of 'India'
- AWDT - Australian Western Daylight Time
- CHOST - Choibalsan Summer Time
- I - India Time Zone
- IRKST - Irkutsk Summer Time
- JST - Japan Standard Time
- KST - Korea Standard Time
- PWT - Palau Time
- TLT - East Timor Time
- ULAST - Ulaanbaatar Summer Time
- WIT - Eastern Indonesian Time
- YAKT - Yakutsk Time
Australian Central Standard Time
Offset: ACST is 9 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Australia
Countries using this time zone: Australia
Principal Cities: The largest city in the ACST time zone is Adelaide in Australia, with about 1.225 million people. Other major cities in this time zone include Darwin, Adelaide Hills, Alice Springs, Palmerston.
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).
Start: Australian Central Standard Time (ACST) started on Sunday, April 5, 2026 at 3:00 am local time and clocks were set one hour back to Sunday, April 5, 2026, 2:00 am. Standard time starts annually on the first Sunday of April.
End: Australian Central Standard Time (ACST) ends on Sunday, October 4, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, October 4, 2026, 3:00 am local daylight time instead. Standard time ends annually on the first Sunday of October.
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 Greenwich Mean Time (GMT) and is used in Australia
Countries using this time zone: Australia
Principal Cities: The largest city in the AEST time zone is Sydney in Australia, with about 4.627 million people. Other major cities in this time zone include Melbourne, Brisbane, Gold Coast, Canberra.
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).
Start: Australian Eastern Standard Time (AEST) started on Sunday, April 5, 2026 at 3:00 am local time and clocks were set one hour back to Sunday, April 5, 2026, 2:00 am. Standard time starts annually on the first Sunday of April.
End: Australian Eastern Standard Time (AEST) ends on Sunday, October 4, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, October 4, 2026, 3:00 am local daylight time instead. Standard time ends annually on the first Sunday of October.
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