The time difference between Adelaide and Sydney is 30 minutes. When it is 12:00 noon in Adelaide, it is 12:30 in Sydney. Adelaide uses the Australia/Adelaide time zone (UTC+9:30), while Sydney uses Australia/Sydney (UTC+10).
There are 7 overlapping business hours between Adelaide and Sydney (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 Adelaide time to Sydney time. Rows highlighted in green indicate overlapping business hours in both cities.
| Adelaide | Sydney | |
|---|---|---|
| 00:00 | 00:30 | Night |
| 01:00 | 01:30 | Night |
| 02:00 | 02:30 | Night |
| 03:00 | 03:30 | Night |
| 04:00 | 04:30 | Night |
| 05:00 | 05:30 | Night |
| 06:00 | 06:30 | |
| 07:00 | 07:30 | |
| 08:00 | 08:30 | |
| 09:00 | 09:30 | Overlap |
| 10:00 | 10:30 | Overlap |
| 11:00 | 11:30 | Overlap |
| 12:00 | 12:30 | Overlap |
| 13:00 | 13:30 | Overlap |
| 14:00 | 14:30 | Overlap |
| 15:00 | 15:30 | Overlap |
| 16:00 | 16:30 | Overlap |
| 17:00 | 17:30 | |
| 18:00 | 18:30 | |
| 19:00 | 19:30 | |
| 20:00 | 20:30 | |
| 21:00 | 21:30 | |
| 22:00 | 22:30 | Night |
| 23:00 | 23:30 | Night |
Neither Adelaide nor Sydney 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. Sydney is 30 minutes ahead of Adelaide.
It can. If either Adelaide or Sydney 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 09:00 and 16:30 Adelaide time, which corresponds to 09:30–17:00 in Sydney. Both sides fall within normal business hours.
Add 30 minutes to Adelaide time to get Sydney 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.