The time difference between Sydney and Adelaide is 30 minutes. When it is 12:00 noon in Sydney, it is 11:30 in Adelaide. Sydney uses the Australia/Sydney time zone (UTC+10), while Adelaide uses Australia/Adelaide (UTC+9:30).
There are 7 overlapping business hours between Sydney and Adelaide (assuming 9:00–17:00 in each city). The ideal window for calls and meetings is:
Use this table to quickly convert any hour from Sydney time to Adelaide time. Rows highlighted in green indicate overlapping business hours in both cities.
| Sydney | Adelaide | |
|---|---|---|
| 00:00 | 23:30 (-1 day) | Night |
| 01:00 | 00:30 | Night |
| 02:00 | 01:30 | Night |
| 03:00 | 02:30 | Night |
| 04:00 | 03:30 | Night |
| 05:00 | 04:30 | Night |
| 06:00 | 05:30 | |
| 07:00 | 06:30 | |
| 08:00 | 07:30 | |
| 09:00 | 08:30 | |
| 10:00 | 09:30 | Overlap |
| 11:00 | 10:30 | Overlap |
| 12:00 | 11:30 | Overlap |
| 13:00 | 12:30 | Overlap |
| 14:00 | 13:30 | Overlap |
| 15:00 | 14:30 | Overlap |
| 16:00 | 15:30 | Overlap |
| 17:00 | 16:30 | |
| 18:00 | 17:30 | |
| 19:00 | 18:30 | |
| 20:00 | 19:30 | |
| 21:00 | 20:30 | |
| 22:00 | 21:30 | Night |
| 23:00 | 22:30 | Night |
Neither Sydney nor Adelaide is currently observing daylight saving time. If either city observes DST, the time difference will change by 1 hour when DST begins or ends. Always double-check before scheduling across these time zones during March–April and October–November.
The time difference is 30 minutes. Adelaide is 30 minutes behind Sydney.
It can. If either Sydney or Adelaide observes daylight saving time, the gap will shift by 1 hour during the transition periods (typically March–April and October–November).
The best window is between 09:30 and 17:00 Sydney time, which corresponds to 09:00–16:30 in Adelaide. Both sides fall within normal business hours.
Subtract 30 minutes from Sydney time to get Adelaide time. Use the hour-by-hour table above for a quick reference.
For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.