Definition: You will be given a passage, and your task is to generate a Yes/No question that is answerable based on the given passage.
Input: 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). Time is regulated by the individual state governments, some of which observe daylight saving time (DST). Australia's external territories observe different time zones.

is all of australia on the same time zone?