Melbourne is 2 hours ahead of Hong Kong (AEST), and 3 hours ahead during AEDT. Hong Kong uses HKT (UTC+8). Melbourne uses AEST (UTC+10) and observes DST.
When it's 12:00 PM in Hong Kong, it's 2:00 PM (AEST) or 3:00 PM (AEDT) in Melbourne.
Most hours work! With only a 2-3 hour difference, business hours overlap significantly.
Hong Kong and Melbourne are major Asia-Pacific business hubs. Cathay Pacific and Qantas operate direct flights taking about 9 hours.