ACST to CEST Converter
Time Difference
Australian Central Standard Time is 7 hours and 30 minutes ahead of Central European Summer Time
9:00 am09:00 in ACST is 1:30 am01:30 in CEST
ACST to CEST call time
Best time for a conference call or a meeting is between 3:30pm-6pm in ACST which corresponds to 8am-10:30am in CEST
9:00 am09:00 Australian Central Standard Time (ACST). Offset UTC +9:30 hours
1:30 am01:30 Central European Summer Time (CEST). Offset UTC +2:00 hours
9:00 am09:00 ACST / 1:30 am01:30 CEST
ACST | CEST |
---|---|
12am (midnight) | 4:30 pm |
1am | 5:30 pm |
2am | 6:30 pm |
3am | 7:30 pm |
4am | 8:30 pm |
5am | 9:30 pm |
6am | 10:30 pm |
7am | 11:30 pm |
8am | 12:30 am |
9am | 1:30 am |
10am | 2:30 am |
11am | 3:30 am |
12pm (noon) | 4:30 am |
1pm | 5:30 am |
2pm | 6:30 am |
3pm | 7:30 am |
4pm | 8:30 am |
5pm | 9:30 am |
6pm | 10:30 am |
7pm | 11:30 am |
8pm | 12:30 pm |
9pm | 1:30 pm |
10pm | 2:30 pm |
11pm | 3:30 pm |
0:00 | 16:30 |
1:00 | 17:30 |
2:00 | 18:30 |
3:00 | 19:30 |
4:00 | 20:30 |
5:00 | 21:30 |
6:00 | 22:30 |
7:00 | 23:30 |
8:00 | 0:30 |
9:00 | 1:30 |
10:00 | 2:30 |
11:00 | 3:30 |
12:00 | 4:30 |
13:00 | 5:30 |
14:00 | 6:30 |
15:00 | 7:30 |
16:00 | 8:30 |
17:00 | 9:30 |
18:00 | 10:30 |
19:00 | 11:30 |
20:00 | 12:30 |
21:00 | 13:30 |
22:00 | 14:30 |
23:00 | 15:30 |
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 switch clocks for one hour forward when daylight saving comes into effect and observe Australian Central Daylight Time (ACDT).
Start: Australian Central Standard Time (ACST) started on Sunday, April 6, 2025 at 3:00 am local time and clocks were set one hour back to Sunday, April 6, 2025, 2:00 am. Standard time starts annually the on first Sunday of April.
End: Australian Central Standard Time (ACST) ends on Sunday, October 5, 2025 at 2:00 am local time and clocks are set one hour forward to Sunday, October 5, 2025, 3:00 am local daylight time instead. Standard time starts annually the on 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 nine hour and thirty minutes time differences to the east of the zero meridian.
- Australia/Adelaide
- Australia/Broken_Hill
- Australia/Darwin
- Australia/North
- Australia/South
- Australia/Yancowinna
Central European Summer Time
Offset: CEST is 2 hours 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, 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, Vatican City
Principal Cities: The largest city in the CEST timezone is Berlin from Germany with population about 3.426 million people. Other major cities in the area are Madrid, Rome, Paris, Budapest
German: MESZ - Mitteleuropäische Sommerzeit

Daylight Saving: Central European Summer Time (CEST) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Central European Time (CET).
Start: Central European Summer Time (CEST) started on Sunday, March 30, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 30, 2025, 3:00 am. Daylight saving starts annually the on last Sunday of March
End: Central European Summer Time (CEST) ends on Sunday, October 26, 2025 at 3:00 am local time and clocks are set one hour back to Sunday, October 26, 2025, 2:00 am local standard time instead. Daylight saving ends annually the on last Sunday of October
CEST representations, usage and related time zones
- +02 - basic short
- +0200 - basic
- +02:00 - extended
- +0200 - sign character (+) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates two hour and zero minutes time differences to the east of the zero meridian.
- Bravo - Military abbreviation for CEST
- B - short form of 'Bravo'
- Africa/Ceuta
- 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
- MET
- Poland
- CEST - Central European Summer Time
- EET - Eastern European Time
- MESZ - Mitteleuropäische Sommerzeit
- B - Bravo Time Zone
- CAT - Central Africa Time
- IST - Israel Standard Time
- SAST - South Africa Standard Time
- WAST - West Africa Summer Time