Best overlap: 5:00 PM to 6:00 PM in Medellín is 8:00 AM to 9:00 AM in Brisbane.
Your window to reach both cities is 5:00 PM to 6:00 PM in Medellín, which converts to 8:00 AM to 9:00 AM in Brisbane. You've got roughly 1 hour — enough for a focused daily check-in if you hold it at 5:00 PM in Medellín (8:00 AM in Brisbane). Note the day shift — Brisbane is on the next day relative to Medellín while this overlap is open.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Medellín America/Bogota | ||||||||||||||||||||||||
Brisbane Australia/Brisbane |
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. -