Melbourne is typically 3 hours ahead of Singapore. When it's 3:00 PM in Melbourne, it's 12:00 PM in Singapore. Singapore does not observe daylight saving time, but Melbourne does.
During Australian summer (October to April), Melbourne is 3 hours ahead. During Australian winter (April to October), Melbourne is only 2 hours ahead of Singapore.
Optimal meeting window: 10:00 AM - 6:00 PM Melbourne time (7:00 AM - 3:00 PM Singapore in summer, 8:00 AM - 4:00 PM in winter). Great business hours overlap.
Melbourne and Singapore have strong education and business ties. Many Australian universities have campuses in Singapore, and Singapore Airlines operates frequent flights to Melbourne.