Best overlap: 9:00 AM to 6:00 PM in Brisbane is 8:30 AM to 5:30 PM in Adelaide.
If you set up a recurring sync, 9:00 AM to 6:00 PM in Brisbane (8:30 AM to 5:30 PM in Adelaide) is the natural home for it. Because you share 9 hours of the workday, there's no need to compromise; book the time that suits the meeting, not the map. Keep an eye on the calendar — Adelaide observes daylight saving and Brisbane doesn't, which nudges this window by an hour twice a year.
| Local time | 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Brisbane Australia/Brisbane | ||||||||||||||||||||||||
Adelaide Australia/Adelaide |
The US to Australia gap runs 14 to 19 hours depending on the month, and someone is always in tomorrow. Exact overlap windows for every US coast, the double-DST trap, and a rotation rule that keeps it fair. -