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ACDT to AWDT Converter

Updating current time…
ACDT
Australian Central Daylight Time
GMT +10:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
AWST/AWDT
Australian Western Standard Time
GMT +8
12am
3am
6am
9am
12pm
3pm
6pm
9pm
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

Depending on seasonal clock changes, ACST is 1 hour and 30 minutes ahead of AWST or ACDT is 2 hours and 30 minutes ahead of AWST.

Depending on seasonal clock changes, working hours of 9:00 am to 5:00 pm in ACST correspond to 7:30 am to 3:30 pm in AWST or working hours of 9:00 am to 5:00 pm in ACDT correspond to 6:30 am to 2:30 pm in AWST.

Compare ACDT time with AWDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Australian Central Daylight Time is 2 hours and 30 minutes ahead of Australian Western Standard Time
10:30 pm22:30 in ACDT is 8:00 pm20:00 in AWST

ACDT to AWST call time
Best time for a conference call or a meeting is between 11:30am-5pm in ACDT which corresponds to 9am-2:30pm in AWST

10:30 pm22:30 Australian Central Daylight Time (ACDT). Offset UTC +10:30 hours
8:00 pm20:00 Australian Western Standard Time (AWST). Offset UTC +8:00 hours

10:30 pm22:30 ACDT / 8:00 pm20:00 AWST

ACDTAWST
12am (midnight)9:30 pm
1am10:30 pm
2am11:30 pm
3am12:30 am
4am1:30 am
5am2:30 am
6am3:30 am
7am4:30 am
8am5:30 am
9am6:30 am
10am7:30 am
11am8:30 am
12pm (noon)9:30 am
1pm10:30 am
2pm11:30 am
3pm12:30 pm
4pm1:30 pm
5pm2:30 pm
6pm3:30 pm
7pm4:30 pm
8pm5:30 pm
9pm6:30 pm
10pm7:30 pm
11pm8:30 pm
00:0021:30
01:0022:30
02:0023:30
03:0000:30
04:0001:30
05:0002:30
06:0003:30
07:0004:30
08:0005:30
09:0006:30
10:0007:30
11:0008:30
12:0009:30
13:0010:30
14:0011:30
15:0012:30
16:0013:30
17:0014:30
18:0015:30
19:0016:30
20:0017:30
21:0018:30
22:0019:30
23:0020:30

Australian Central Daylight Time

Offset: ACDT is 10 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 ACDT time zone is Adelaide in Australia, with about 1.225 million people. Other major cities in this time zone include Adelaide Hills, Mount Gambier, Morphett Vale, Prospect.

ACDT Time Zone Geo Map
ACDT timezone map

Daylight Saving: Australian Central Daylight Time (ACDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Australian Central Standard Time (ACST).

Daylight saving time clock moves forward for one hour from 2am to 3amStart: Australian Central Daylight Time (ACDT) started on Sunday, October 5, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, October 5, 2025, 3:00 am. Daylight saving starts annually on the first Sunday of October

Daylight saving time clock moves back for one hour from 3am to 2amEnd: Australian Central Daylight Time (ACDT) ends on Sunday, April 5, 2026 at 3:00 am local time and clocks are set one hour back to Sunday, April 5, 2026, 2:00 am local standard time instead. Daylight saving ends annually on the first Sunday of April

ACDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +1030 - basic
  • +10:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1030 - sign character (+) followed by a four digit time providing hours (10) and minutes (30) of the offset. Indicates an offset of ten hours and thirty minutes to the east of the zero meridian.
IANA/Olson: Reflects ACDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Australia/Adelaide
  • Australia/Broken_Hill
  • Australia/South
  • Australia/Yancowinna
Time zones with the GMT +10:30 offset:
  • ACDT - Australian Central Daylight Time
  • LHST - Lord Howe Standard Time

Australian Western Daylight Time

Offset: AWDT is 9 hours ahead Greenwich Mean Time (GMT) and is used in Australia

AWDT Time Zone Geo Map
AWDT timezone map

AWDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +09 - basic short
  • +0900 - basic
  • +09:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +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.
Military/NATO: Used by the U.S. military, Chinese military and others
  • India - Military abbreviation for AWDT
  • I - short form of 'India'
Time zones with the GMT +9 offset:
  • 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
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT