What is CET in ACST?
Australian Central Time is 7 hours 30 minutes ahead
Central European Time is on UTC+2:00 and Australian Central Time is on UTC+9:30 right now. Central European Time is on daylight saving, so its clocks read CEST. The gap changes during the year — see below.
- Time in Paris
- 4:56 am
- Time in Adelaide
- 12:26 pm
- Difference
- +7:30 h
- Next clock change
- October 3, 2026
Convert a time
ACST — Australian Central Time
11:30 am
Wed
When the difference changes
Central European Time and Australian Central Time do not change their clocks on the same dates, so the gap between them is not the same all year. Most converters show only today’s figure. These are the periods ahead:
- Now – October 3, 2026Australian Central Time is 7 hours 30 minutes ahead
- October 3, 2026 – October 25, 2026Australian Central Time is 8 hours 30 minutes ahead
- October 25, 2026 – March 28, 2027Australian Central Time is 9 hours 30 minutes ahead
- March 28, 2027 – April 3, 2027Australian Central Time is 8 hours 30 minutes ahead
- April 3, 2027 – October 2, 2027Australian Central Time is 7 hours 30 minutes ahead
- October 2, 2027 – onwardsAustralian Central Time is 8 hours 30 minutes ahead
Periods shorter than a day are not listed: both zones change at 2am in their own local time, so there are a few hours on each transition date when the gap is briefly something else.
Daylight saving
Central European Time
Clocks go back one hour at 2am local time, becoming CET.
Australian Central Time
Clocks go forward one hour at 2am local time, becoming ACDT.
CET to ACST conversion table
Every hour of Wednesday, September 23, 2026, converted from Central European Time to Australian Central Time. 7 of the 24 hours fall on a different calendar day in Adelaide, which is marked.
- 12:00 am CEST
- 7:30 am ACST
- 1:00 am CEST
- 8:30 am ACST
- 2:00 am CEST
- 9:30 am ACST
- 3:00 am CEST
- 10:30 am ACST
- 4:00 am CEST
- 11:30 am ACST
- 5:00 am CEST
- 12:30 pm ACST
- 6:00 am CEST
- 1:30 pm ACST
- 7:00 am CEST
- 2:30 pm ACST
- 8:00 am CEST
- 3:30 pm ACST
- 9:00 am CEST
- 4:30 pm ACST
- 10:00 am CEST
- 5:30 pm ACST
- 11:00 am CEST
- 6:30 pm ACST
- 12:00 pm CEST
- 7:30 pm ACST
- 1:00 pm CEST
- 8:30 pm ACST
- 2:00 pm CEST
- 9:30 pm ACST
- 3:00 pm CEST
- 10:30 pm ACST
- 4:00 pm CEST
- 11:30 pm ACST
- 5:00 pm CEST
- 12:30 am ACST+1 day
- 6:00 pm CEST
- 1:30 am ACST+1 day
- 7:00 pm CEST
- 2:30 am ACST+1 day
- 8:00 pm CEST
- 3:30 am ACST+1 day
- 9:00 pm CEST
- 4:30 am ACST+1 day
- 10:00 pm CEST
- 5:30 am ACST+1 day
- 11:00 pm CEST
- 6:30 am ACST+1 day
Scheduling between the two
Working hours overlap from 9:00 am to 11:00 am CEST, which is 4:30 pm to 6:30 pm ACST. Anything inside that window falls in the normal working day at both ends.
Central European Time (CEST) is used in Berlin, Madrid, Rome, Amsterdam, Warsaw and Stockholm
Australian Central Time (ACST) is used in South Australia and the Northern Territory, on a half-hour offset from the east coast