HEY... I KNOW I'm from Sydney too...(+10)
SO I put in that for now,
But it would change in 6 months with daylight-savings...
If one goes up the east-coast of oz during the right time of year you can get 2 different TZs (or is it 3?) on the same Longitude
Then there is always our central states (SA and NT) that go half an hour behind AEST (Australian Eastern standard Time-or Sydney)
where would you put these guys????
just playing devil's advocate