Currently on ACDT (UTC+10:30). Next clock change: Sunday 4 April 2027 at 03:00, when clocks go back to ACST (UTC+9:30).
Time zone in Adelaide
| Country | Australia |
|---|---|
| IANA time zone | Australia/Adelaide |
| Standard (winter) time | ACST (UTC+9:30) |
| Daylight saving (summer) time | ACDT (UTC+10:30) (southern hemisphere: roughly October to April) |
What to know about time in Adelaide
South Australia uses a half-hour offset: ACST (UTC+9:30) in winter and ACDT (UTC+10:30) in summer, on the same dates as Sydney.
Clock changes in Adelaide in 2026 and 2027
- Sunday 5 April 2026: at 03:00 clocks go back to 02:00. ACDT (UTC+10:30) becomes ACST (UTC+9:30), and the hour from 02:00 happens twice.
- Sunday 4 October 2026: at 02:00 clocks go forward to 03:00. ACST (UTC+9:30) becomes ACDT (UTC+10:30), and the hour in between is skipped.
- Sunday 4 April 2027: at 03:00 clocks go back to 02:00. ACDT (UTC+10:30) becomes ACST (UTC+9:30), and the hour from 02:00 happens twice.
- Sunday 3 October 2027: at 02:00 clocks go forward to 03:00. ACST (UTC+9:30) becomes ACDT (UTC+10:30), and the hour in between is skipped.
Times are local. Phones, laptops and other devices that set their time automatically will update themselves. Wall clocks, ovens and car clocks usually need changing by hand.
Time difference between Adelaide and other cities
The table shows how far each city is ahead of or behind Adelaide, and how that changes when either place changes its clocks between now and the end of 2027.
| City | Now | Through 2026 and 2027 |
|---|---|---|
| London | 9½ hours behind | 9½ hours behind until 25 Oct 2026; 10½ hours behind 25 Oct 2026 to 28 Mar 2027; 9½ hours behind 28 Mar 2027 to 4 Apr 2027; 8½ hours behind 4 Apr 2027 to 3 Oct 2027; 9½ hours behind 3 Oct 2027 to 31 Oct 2027; 10½ hours behind from 31 Oct 2027 |
| New York | 14½ hours behind | 14½ hours behind until 1 Nov 2026; 15½ hours behind 1 Nov 2026 to 14 Mar 2027; 14½ hours behind 14 Mar 2027 to 4 Apr 2027; 13½ hours behind 4 Apr 2027 to 3 Oct 2027; 14½ hours behind 3 Oct 2027 to 7 Nov 2027; 15½ hours behind from 7 Nov 2027 |
| Los Angeles | 17½ hours behind | 17½ hours behind until 1 Nov 2026; 18½ hours behind 1 Nov 2026 to 14 Mar 2027; 17½ hours behind 14 Mar 2027 to 4 Apr 2027; 16½ hours behind 4 Apr 2027 to 3 Oct 2027; 17½ hours behind 3 Oct 2027 to 7 Nov 2027; 18½ hours behind from 7 Nov 2027 |
| Dubai | 6½ hours behind | 6½ hours behind until 4 Apr 2027; 5½ hours behind 4 Apr 2027 to 3 Oct 2027; 6½ hours behind from 3 Oct 2027 |
| Mumbai | 5 hours behind | 5 hours behind until 4 Apr 2027; 4 hours behind 4 Apr 2027 to 3 Oct 2027; 5 hours behind from 3 Oct 2027 |
| Singapore | 2½ hours behind | 2½ hours behind until 4 Apr 2027; 1½ hours behind 4 Apr 2027 to 3 Oct 2027; 2½ hours behind from 3 Oct 2027 |
| Tokyo | 1½ hours behind | 1½ hours behind until 4 Apr 2027; 0½ hours behind 4 Apr 2027 to 3 Oct 2027; 1½ hours behind from 3 Oct 2027 |
| Sydney | 0½ hours ahead | 0½ hours ahead until 4 Apr 2027; 0½ hours behind 4 Apr 2027 to 4 Apr 2027; 0½ hours ahead 4 Apr 2027 to 3 Oct 2027; 1½ hours ahead 3 Oct 2027 to 3 Oct 2027; 0½ hours ahead from 3 Oct 2027 |
Working hours overlap
How much of a 09:00–17:00 working day in Adelaide overlaps with the same hours elsewhere, using a mid-week day in January and July 2027:
- London: in January, none; in July, none.
- New York: in January, none; in July, none.
Plan around Adelaide time
- Convert a time in Adelaide to another city, on any date
- Find a meeting time that works for Adelaide and up to four other places
- All time zones in Australia