Australia/Sydney is a time zone identifier used in Australia and is 1 of 13 identifiers used in the country. The identifier belongs to the Australian Eastern time zone AEST and AEDT and has a UTC/GMT offset of +10:00 for standard time and +11:00 for observing daylight time. Coordinates are -33.86666 S and 151.21666 E.What is time zone?
A time zone is a region of earth that has adopted the same standard time, usually referred to as the local time. Most time zones are exactly one hour apart. By convention, all time zones compute their local time as an offset from GMT/UTC.