is all of australia on the same time zone
Time in Australia Australia uses three main time zones: Australian Western Standard Time (AWST; UTC+08:00), Australian Central Standard Time (ACST; UTC+09:30), and Australian Eastern Standard Time (AEST; UTC+10:00).[1] Time is regulated by the individual state governments,[2] some of which observe daylight saving time (DST). Australia's external territories observe different time zones.
Geography of Brazil Brazil occupies most of the eastern part of the South American continent and its geographic heartland (48% of South America), as well as various islands in the Atlantic Ocean. The only countries in the world that are larger are Russia, Canada, China, and the United States. The national territory extends 4,395 kilometers (2,731 mi) from north to south (5°16'20" N to 33°44'32" S latitude), and 4,319 kilometers (2,684 mi) from east to west (34°47'30" W to 73°59'32" W longitude). It spans three time zones, the westernmost of which is one hour ahead of Eastern Standard Time in the United States. The time zone of the capital (Brasília) and of the most populated part of Brazil along the east coast (UTC-3) is two hours ahead of Eastern Standard Time, except when it is on its own daylight saving time, from October to February. The Atlantic islands are in the easternmost time zone.