Visit C3
C3 is free of charge and open to the public during the opening hours of C3 library. Event times are announced in our upcoming events calendar. Whether for learning, reading, training and education, events or team work – we look forward to your visit!
Opening hours of the library
Our regular opening hours:
| Monday – Tuesday | 9.00 – 17.00 |
| Wednesday – Thursday | 9.00 – 19.00 |
| Friday | 9.00 – 14.00 |
Limited opening hours from August 31st until September 27th 2026:
| Monday – Thursday | 9.00 – 17.00 |
| Friday | 9.00 – 14.00 |
The library is closed on public holidays.
Additionally, the library will be closed on the following days in 2025/26:
| Winter holidays | December 24th 2025 – January 6th 2026 |
| Semester holidays | January 31st 2026 – February 8th 2026 |
| Easter holidays | March 28th 2026 – April 6th 2026 |
| Summer holidays | July 11th 2026 – August 30th 2026 |
| Winter holidays | December 24th 2026 – January 6th 2027 |
Location
C3 is located at Sensengasse 3 in Vienna’s 9th district next to the University of Vienna campus. You can get there by using tram lines 5, 33, 37, 38, 40, 41, 42 and metro lines U2, U6.
Accessability
C3 premises are spread over three floors. All rooms, including a toilet, are wheelchair accessible and can be reached via ramp and lift. However, the lift is located outside our premises and requires one of our team to open the doors. We are happy to help and accompany you to the lift or show you the way to the particular rooms. Assistance dogs are welcome in C3. If you would like, please contact us before your visit so that we can make your stay as barrier-free as possible.