CET to ACST 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.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
2:00 pm14:00 CEST (UTC+2), Oct 12, 2026 = 9:30 pm21:30 ACST (UTC+9:30), Oct 12, 2026
CEST is 7 hours and 30 minutes behind ACST.
CET and ACST examples
These examples always use CET (UTC+1) and ACST (UTC+9:30). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
CET is 8 hours and 30 minutes behind ACST.
How the time difference changes
For most of the year, CEST is 7 hours and 30 minutes behind ACST. From Oct 25, 2026 to Mar 28, 2027, CET is 8 hours and 30 minutes behind ACST.
For most of the year, working hours of 9:00 am to 5:00 pm in CEST correspond to 4:30 pm to 12:30 am (next day) in ACST. At other times of the year, working hours of 9:00 am to 5:00 pm in CET correspond to 5:30 pm to 1:30 am (next day) in ACST.For most of the year, working hours of 09:00 to 17:00 in CEST correspond to 16:30 to 00:30 (next day) in ACST. At other times of the year, working hours of 09:00 to 17:00 in CET correspond to 17:30 to 01:30 (next day) in ACST.
Compare CET time with ACST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Central European Summer Time is 7 hours and 30 minutes behind Australian Central Standard Time.
2:00 pm14:00 in CEST is 9:30 pm21:30 in ACST
CEST to ACST call time
Best time for a conference call or a meeting is between 9am-9:30am09:00-09:30 in CEST which corresponds to 4:30pm-5pm16:30-17:00 in ACST
2:00 pm14:00 Central European Summer Time (CEST). Offset UTC +2:00 hours
9:30 pm21:30 Australian Central Standard Time (ACST). Offset UTC +9:30 hours
2:00 pm14:00 CEST / 9:30 pm21:30 ACST
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.
| CEST | ACST |
|---|---|
| 7:30am | |
| 8:30am | |
| 9:30am | |
| 10:30am | |
| 11:30am | |
| 12:30pm | |
| 1:30pm | |
| 2:30pm | |
| 3:30pm | |
| 4:30pm | |
| 5:30pm | |
| 6:30pm | |
| 7:30pm | |
| 8:30pm | |
| 9:30pm | |
| 10:30pm | |
| 11:30pm | |
| 12:30am next day | |
| 1:30am next day | |
| 2:30am next day | |
| 3:30am next day | |
| 4:30am next day | |
| 5:30am next day | |
| 6:30am next day | |
| 07:30 | |
| 08:30 | |
| 09:30 | |
| 10:30 | |
| 11:30 | |
| 12:30 | |
| 13:30 | |
| 14:30 | |
| 15:30 | |
| 16:30 | |
| 17:30 | |
| 18:30 | |
| 19:30 | |
| 20:30 | |
| 21:30 | |
| 22:30 | |
| 23:30 | |
| 00:30 next day | |
| 01:30 next day | |
| 02:30 next day | |
| 03:30 next day | |
| 04:30 next day | |
| 05:30 next day | |
| 06:30 next day |
Central European Time
Offset: CET is 1 hour ahead of Greenwich Mean Time (GMT).
Countries using this time zone: 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 time zone is Berlin in Germany, with about 3.426 million people. Other major cities in this time zone include Madrid, Algiers, Rome, Paris.
German: MEZ - Mitteleuropäische Zeit
Today the lighter areas are on UTC+2 (CEST).
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Central European Summer Time (CEST).
End: Central European Time (CET) ended on Sunday, March 29, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 29, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the last Sunday of March.
Start: Central European Time (CET) starts on Sunday, October 25, 2026 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, October 25, 2026, 2:00 am02:00. Standard time starts annually on the last Sunday of October.
CET representations, usage and related time zones
- +01 - basic short
- +0100 - basic
- +01:00 - extended
- +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
- Alpha - Military abbreviation for CET
- A - short form of 'Alpha'
- 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
- MET
- Poland
- 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
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.
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