Sydney is known as the Harbour City. It's the largest, oldest and most cosmopolitan city in Australia with an enviable reputation as one of the world's most beautiful and liveable cities.
Sydney is a major global city and one of the most important cities for finance in the Asia-Pacific. The city is surrounded by nature and national parks, which extend through the suburbs and right to the shores of the harbour. It could be said that the tyranny of distance has shrunk in recent times. Sydney is now only a flight away from some of the fastest growing and largest economies in the world. This has increased the profile of the city, admired for its clean environment and fantastic weather. Sydney's 4,757,083 residents (according to a 2013 estimate) sprawl over an area of more than 12,350km². The timezone is identical with the majority of the state of New South Wales: GMT +10. The local timezone is AEST or Australian Eastern Standard Time. The city, as does the rest of the state, observes Daylight Savings time from October to April each year. During daylight savings time Sydney is 30 minutes ahead of Adelaide, 1 hour ahead of Brisbane and 3 hours ahead of Singapore.