for winter semester (application for 1st semester or a higher semester):
June 1st to July 15th
for summer semester (only for 2nd or higher semesters):
December 1st to January 15th
The official german-language program-specific documents can be found here:
admission regulation examination regulations
An unofficial translation of the program-specific documents into English can be found here:
admission regulation examination regulations
The flowchart below provides an overview of the requirements for admission to the Master's degree program AIMS.