Mexico City is 16 hours behind Melbourne
Best overlap: 8:00 AM to 10:00 AM in Melbourne is 4:00 PM to 6:00 PM in Mexico City.
Your shared working hours run 8:00 AM to 10:00 AM in Melbourne (4:00 PM to 6:00 PM in Mexico City). The window is short at 2 hours, so keep meetings tight and anchored to 8:00 AM in Melbourne (4:00 PM in Mexico City). The overlap spans the date line; in practical terms, Mexico City is on the previous day compared to Melbourne. Heads up: because Melbourne changes its clocks and Mexico City doesn't, the difference moves by an hour twice a year. Confirm the overlap around the DST switch.