I am an Australian citizen / passport holder on a German Residence Permit that expires on 15 August 2024.
I first entered Germany on 13 February 2024 and applied for a Residence Permit for the purposes of studying German. I was able to submit all the required documents for the formal application in late March 2024.
I received this Residence Permit recently and on it has the official start date of my Residence Permit listed as 2 April 2024.
I am aware that it would be advisable to leave Germany no later than 15 August 2024.
However, I would appreciate any guidance and expertise to help me understand whether I can continue staying and visiting other Schengen countries for 90 days on an Australian passport after leaving Germany on 15 August 2024?
In addition, if I were to go to a non-Schengen country first, like Turkey, for 2 weeks and then return to a Schengen country (e.g. Portugal) on 30 August, when would the official 90 days / 180 days rule commence?
If it helps and for further context, the only other occasion that I was in Schengen was from 17 July 2023 to 13 October 2023.
Your help would be greatly appreciated.
Thank you!