Sydney is 2-3 hours ahead of Beijing. Beijing uses China Standard Time (CST, UTC+8) while Sydney uses Australian Eastern Time (AEST/AEDT, UTC+10/+11). When it's 12:00 PM in Beijing, it's 2:00 PM or 3:00 PM in Sydney depending on daylight saving time.
Sydney observes daylight saving time while China does not, so the difference varies between 2 and 3 hours throughout the year.
Best calling time: 7:00 AM - 4:00 PM Beijing time. This corresponds to 9:00 AM - 6:00 PM in Sydney, covering standard business hours.
China and Australia have significant trade relationships, with Australia being a major supplier of resources to China. Many Chinese students study in Sydney, and tourism flows both ways. The small time difference makes business coordination convenient.