Melbourne is 2 hours ahead of Kuala Lumpur
Best overlap: 8:00 AM to 4:00 PM in Kuala Lumpur is 10:00 AM to 6:00 PM in Melbourne.
Keep meetings inside 8:00 AM to 4:00 PM in Kuala Lumpur — that maps to 10:00 AM to 6:00 PM in Melbourne. With 8 hours of daily overlap, these two cities are an easy pairing; almost any reasonable hour works. These times hold for most of the year, but Melbourne's daylight saving (which Kuala Lumpur doesn't use) shifts them by an hour twice annually.