Key Semester Dates
As is common at many universities, the academic year at the University of Bonn is divided into two half-year semesters. The winter semester actually begins in autumn, while the summer semester begins in the spring. The formal semester start dates are not the same as the lecture periods, which change from year to year.
Academic Calendar
Semester start
Winter semester
October 1 – March 31
Summer semester
April 1 – September 30
Lecture Periods and Deadlines
Summer semester 2024
Lecture period
- April 8 - July 19, 2024
Dies Academicus
- May 15, 2024
Lecture-free period (Pentecost break)
- May 20 - May 24, 2024
- July 6, 2024
Winter semester 2024/25
Lecture period
- October 7, 2024 - January 31, 2025
First-Semester-Student's Welcome
- September 30, 2024
- October 18, 2024
Dies Academicus
- December 4, 2024
Lecture-free period (Christmas break)
- December 24, 2024 - January 6, 2025
Re-registration deadlines
Winter semester
August, 31
Summer semester
February, 28/29
Lecture periods until 2024
Winter semester 2023/24
October 9, 2023 – February 2, 2024
Summer semester 2024
April 8, 2024 – July 19, 2024
Winter semester 2024/25
October 7, 2024 – January 31, 2025
Summer semester 2025
April 7, – July 18, 2025
Eröffnung des Akademischen Jahres
All application, admission and enrollment deadlines can be found in the Application Deadlines section.