Applications for September 2022 are open until March 15, 2022.
The minimum period for preparing for admission is 3 months, but the ideal period is 12-18 months. If you want to be admitted this year, then start preparing as soon as possible.
The main deadlines are February 1 for the autumn semester and September 1 for the spring semester. However, dates may differ depending on the university. Some universities may set out several stages of admission with various deadlines. For example, the University of Vienna's first deadline is October 8, its second is January 8, and third — March 8.