Convert ACDT to CET
CET is 9 hours 30 minutes behind ACDT. ACDT is UTC+10:30 and CET is UTC+1.
Right now: ACDT · CET
Best time to schedule a meeting
Standard 9–5 working hours do not overlap at all between ACDT and CET. Someone has to take an early or late call — or use asynchronous communication instead.
| ACDT | CET | Suitable? |
|---|---|---|
| 9:00 AM | 11:30 PM (previous day) | outside 9–5 |
| 10:00 AM | 12:30 AM | outside 9–5 |
| 11:00 AM | 1:30 AM | outside 9–5 |
| 12:00 PM | 2:30 AM | outside 9–5 |
| 1:00 PM | 3:30 AM | outside 9–5 |
| 2:00 PM | 4:30 AM | outside 9–5 |
| 3:00 PM | 5:30 AM | outside 9–5 |
| 4:00 PM | 6:30 AM | outside 9–5 |
| 5:00 PM | 7:30 AM | outside 9–5 |
ACDT to CET conversion table
| ACDT | CET |
|---|---|
| 12:00 AM | 2:30 PM (previous day) |
| 1:00 AM | 3:30 PM (previous day) |
| 2:00 AM | 4:30 PM (previous day) |
| 3:00 AM | 5:30 PM (previous day) |
| 4:00 AM | 6:30 PM (previous day) |
| 5:00 AM | 7:30 PM (previous day) |
| 6:00 AM | 8:30 PM (previous day) |
| 7:00 AM | 9:30 PM (previous day) |
| 8:00 AM | 10:30 PM (previous day) |
| 9:00 AM | 11:30 PM (previous day) |
| 10:00 AM | 12:30 AM |
| 11:00 AM | 1:30 AM |
| 12:00 PM | 2:30 AM |
| 1:00 PM | 3:30 AM |
| 2:00 PM | 4:30 AM |
| 3:00 PM | 5:30 AM |
| 4:00 PM | 6:30 AM |
| 5:00 PM | 7:30 AM |
| 6:00 PM | 8:30 AM |
| 7:00 PM | 9:30 AM |
| 8:00 PM | 10:30 AM |
| 9:00 PM | 11:30 AM |
| 10:00 PM | 12:30 PM |
| 11:00 PM | 1:30 PM |
About ACDT
Australian Central Daylight Time (ACDT) is UTC+10:30. It is used in Adelaide in summer.
Australian Central Daylight Time is UTC+10:30, what South Australia keeps from October to April. Darwin stays on ACST through the summer, so for those months two cities in the same nominal zone are an hour apart — the only reason to be precise about which of the two abbreviations a meeting invitation carries.
About CET
Central European Time (CET) is UTC+1. It is used in Paris, Berlin, Madrid, Rome and Warsaw in winter.
Central European Time is UTC+1 and covers most of continental Europe in winter — Paris, Berlin, Madrid, Rome, Warsaw. It is worth noting how much of the continent this is: Spain sits geographically west of Britain but runs an hour ahead of it, a legacy of a 1940 decision that was never reversed. From late March to late October the same countries are on CEST, UTC+2.
Does this gap change with the seasons?
This gap is seasonal. The abbreviations themselves are fixed offsets, but the region on CET switches to CEST (UTC+2) from late March to late October. So the 9.5-hour figure on this page is correct for the part of the year when both places are actually on these abbreviations, and changes by an hour outside it.
ACDT does not shift, so the whole change comes from one side. A recurring meeting fixed in ACDT will appear to move by an hour for everyone on the other side, twice a year, without anyone changing anything.
This is the reason scheduling systems store an IANA zone such as Region/City rather than an offset or an abbreviation: the zone knows its own rules and the offset does not.
Frequently asked questions
What time is 9:00 AM ACDT in CET?
9:00 AM ACDT is 11:30 PM CET (previous day).
Is CET ahead of ACDT?
CET is 9 hours 30 minutes behind ACDT.
Which time zone does this use?
ACDT is UTC+10:30 and CET is UTC+1. Both abbreviations denote a single fixed offset, so this conversion never shifts with daylight saving — what changes is which abbreviation a place is using at the time.