original: Most Australian external territories also observe different time zones.
simplifications: Most Australian territories also observe different time zones. Australian external territories have different time zones. Most Australian external territories have different time zones. Most Australian outside territories also have different time zones. Most Australian outside territories also use different time zones. Most Australian territories outside of the Australia have different time zones. Most external part of Australia have different time zones. Most Australian external territories have different time zones. Some Australian external territories also have different time zones. Most Australian external regions also observe different time zones