Usually, the processing time for Type C visas is about 15 to 20 days.
When there are many applications being processed simultaneously, the processing time can go up to 30 days as well.
In exceptional cases, even 60 days might be needed for processing.
The processing period can be extended to 30 days because of the number of applications received by the Austrian embassy/consulate or the uniqueness of your situation.
It can take up to 60 days for exceptional applications to be processed by the Austrian embassy/consulate.