Best overlap: 8:00 AM to 9:00 AM in Brisbane is 5:00 PM to 6:00 PM in Dallas.
Plan around 8:00 AM to 9:00 AM in Brisbane, which is 5:00 PM to 6:00 PM in Dallas, to catch everyone during office hours. Dallas is 15 hours behind Brisbane. That's only 1 hour of overlap, so pair live calls with async follow-ups to make the most of it. The date rolls over between them: Dallas is on the previous day relative to Brisbane during these hours. Daylight saving complicates things slightly: Dallas observes it, Brisbane doesn't, so the difference flexes by an hour part of the 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 | ||||||||||||||||||||||||
Dallas America/Chicago |
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. -