ACST
Australian Central Standard Time
GMT +9:30
ACST is NOT in use by many locations
ACDT (Australian Central Daylight Time) is used instead. Switch to ACDT time zone or select one of the cities Adelaide, Darwin, Adelaide Hills for automatic timezone change.
CET
Central European Time
GMT +1

Time Difference

Australian Central Standard Time is 8 hours and 30 minutes ahead of Central European Time
1:00 am01:00 in ACST is 4:30 pm16:30 in CET

ACST to CET call time
Best time for a conference call or a meeting is between 4:30pm-6:30pm in ACST which corresponds to 8am-10am in CET

1:00 am01:00 Australian Central Standard Time (ACST). Offset UTC +9:30 hours
4:30 pm16:30 Central European Time (CET). Offset UTC +1:00 hour

1:00 am01:00 ACST / 4:30 pm16:30 CET

ACST CET
12am (midnight) 3:30 pm
1am 4:30 pm
2am 5:30 pm
3am 6:30 pm
4am 7:30 pm
5am 8:30 pm
6am 9:30 pm
7am 10:30 pm
8am 11:30 pm
9am 12:30 am
10am 1:30 am
11am 2:30 am
12pm (noon) 3:30 am
1pm 4:30 am
2pm 5:30 am
3pm 6:30 am
4pm 7:30 am
5pm 8:30 am
6pm 9:30 am
7pm 10:30 am
8pm 11:30 am
9pm 12:30 pm
10pm 1:30 pm
11pm 2:30 pm
0:00 15:30
1:00 16:30
2:00 17:30
3:00 18:30
4:00 19:30
5:00 20:30
6:00 21:30
7:00 22:30
8:00 23:30
9:00 0:30
10:00 1:30
11:00 2:30
12:00 3:30
13:00 4:30
14:00 5:30
15:00 6:30
16:00 7:30
17:00 8:30
18:00 9:30
19:00 10:30
20:00 11:30
21:00 12:30
22:00 13:30
23:00 14:30

Australian Central Standard Time

Offset: ACST is 9 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Australia

Countries: It is used in following countries: Australia

Principal Cities: The largest city in the ACST timezone is Adelaide from Australia with population about 1.225 million people. Other major cities in the area are Darwin, Adelaide Hills, Alice Springs, Palmerston

Daylight Saving: This is a standard timezone, however during summer some places adjust time for one hour forward for daylight saving and observe Australian Central Daylight Time (ACDT).

End: ACST ended and clocks were set one hour forward on Sunday, 04 October 2020, at 2:00 (2:00 am) local time.

Start: ACST starts and clocks are set one hour back on Sunday, 04 April 2021, at 3:00 (3:00 am) local time.

ACST Time Zone Geo Map
ACST timezone map

ACST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +0930 - basic
  • +09:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0930 - sign character (+) followed by a four digit time providing hours (09) and minutes (30) of the offset. Indicates nine hour and thirty minutes time differences to the east of the zero meridian.
IANA/Olson: Reflects ACST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Australia/Adelaide
  • Australia/Broken_Hill
  • Australia/Darwin
  • Australia/North
  • Australia/South
  • Australia/Yancowinna

Central European Time

Offset: CET is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe

Countries: It is used in following countries: Andorra, Albania, Austria, Bosnia & Herzegovina, Belgium, Switzerland, Czech Republic, Germany, Denmark, Algeria, Spain, France, Gibraltar, Croatia, Hungary, Italy, Liechtenstein, Luxembourg, Monaco, Montenegro, North Macedonia, Malta, Netherlands, Norway, Poland, Serbia, Sweden, Slovenia, Svalbard & Jan Mayen, Slovakia, San Marino, Tunisia, Vatican City

Principal Cities: The largest city in the CET timezone is Berlin from Germany with population about 3.426 million people. Other major cities in the area are Madrid, Rome, Paris, Algiers

Daylight Saving: This is a standard timezone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Central European Summer Time (CEST).

Start: CET started and clocks were set one hour back on Sunday, 25 October 2020, at 3:00 (3:00 am) local time.

End: CET ends and clocks are set one hour forward on Sunday, 28 March 2021, at 2:00 (2:00 am) local time.

German: MEZ - Mitteleuropäische Zeit

CET Time Zone Geo Map
CET timezone map

CET representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +01 - basic short
  • +0100 - basic
  • +01:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates one hour and zero minutes time differences to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Alpha - Military abbreviation for CET
  • A - short form of 'Alpha'
IANA/Olson: Reflects CET time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Algiers
  • Africa/Ceuta
  • Africa/Tunis
  • Arctic/Longyearbyen
  • Atlantic/Jan_Mayen
  • CET
  • Europe/Amsterdam
  • Europe/Andorra
  • Europe/Belgrade
  • Europe/Berlin
  • Europe/Bratislava
  • Europe/Brussels
  • Europe/Budapest
  • Europe/Busingen
  • Europe/Copenhagen
  • Europe/Gibraltar
  • Europe/Ljubljana
  • Europe/Luxembourg
  • Europe/Madrid
  • Europe/Malta
  • Europe/Monaco
  • Europe/Oslo
  • Europe/Paris
  • Europe/Podgorica
  • Europe/Prague
  • Europe/Rome
  • Europe/San_Marino
  • Europe/Sarajevo
  • Europe/Skopje
  • Europe/Stockholm
  • Europe/Tirane
  • Europe/Vaduz
  • Europe/Vatican
  • Europe/Vienna
  • Europe/Warsaw
  • Europe/Zagreb
  • Europe/Zurich
  • Poland
Time zones with the GMT +1 offset:
  • BST - British Summer Time
  • CET - Central European Time
  • IST - Irish Standard Time
  • WEST - Western European Summer Time
  • A - Alpha Time Zone
  • CET - Central European Time
  • MEZ - Mitteleuropäische Zeit
  • WAT - West Africa Time
  • WST - Western Sahara Summer Time
  • BMT - Biel Mean Time
  • GMT - GMT
  • +01 -