This is not an official announcement. The university may change the public hours without me noticing. This information is supplied without liability!
Usually the building is open at these hours:
Monday through Friday 8 am -10 pm and
Saturday 9 pm -6 pm.
These are the public hours of the library too.
Caution: On Saturday only the doors facing the Leopoldstrasse (via the bridge) and opposite the canteen “Mensa” are open . To get to house 1 or 3 you have to enter through these doors and change the buildings once you’re inside.