According to
this document, on Page 12:
The Mathematics Standard Year 11 course content notated by ◊ will be assumed knowledge for this examination and may be examined
According to your syllabus, under the Year 11 section on Page 38: Observe the ◊ on the second main bullet point.

My own interpretation: This does not look like it requires much work on latitude and longitude. However it does require that you can still work with Australian time zones, and given time zones nonetheless.
You may wish to revisit your Year 11 textbook (or notes, if you still have them) on this matter.
Note: There is no Year 12 content related to spherical geometry.