Our opening hours We are looking forward to your visit! Opening hours Spring Semester 2020 starting 17.03.2020 Mon - Fri closed Sat closed Closing Dates Spring Semester 2020 Easter Fri, 10 April until Mon, 13 April 2020 Dies Academicus Sat, 16 May 2020 Ascension Day Thu, 21 May 2020 Pentecost Sun, 31 May until Mon, 1 June 2020 On the other days, the library is open as usual.