但是看了RMS官网,它的解释是从登陆之日起的3个月: http://www.rms.nsw.gov.au/roads/licence/visiting-nsw.html
Permanent residents
If you’re a permanent resident of Australia under the Commonwealth Migration Act 1958, you can drive or ride on a current overseas licence for a maximum of three months from the date you arrive in Australia. To keep driving, you need to obtain (not just apply for) a NSW licence within this three month period. See Moving to NSW for more information.