Melbourne is 15 hours ahead of Bogotá
Best overlap: 5:00 PM to 6:00 PM in Bogotá is 8:00 AM to 9:00 AM in Melbourne.
For a call that suits both sides, look at 5:00 PM to 6:00 PM in Bogotá / 8:00 AM to 9:00 AM in Melbourne. Melbourne is 15 hours ahead of Bogotá, so you only get about 1 hour of overlap a day — worth locking in a standing time like 5:00 PM in Bogotá (8:00 AM in Melbourne) before it slips. Heads up on dates: Melbourne will show the next day relative to Bogotá when you meet. Remember that Melbourne shifts for daylight saving and Bogotá doesn't, so recalculate the overlap after each clock change.