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
Winter semester 2022/2023
Lecture period
- October 10, 2022 - February 3, 2023
First-Semester-Student's Welcome
- October 4, 2022
- October 18, 2022
Dies Academicus
- December 7, 2022
Lecture-free period (Christmas break)
- December 24, 2022 - January 7, 2023
Summer semester 2023
Lecture period
- April 3 - July 14, 2023
Dies Academicus
- May 24, 2023
Lecture-free period (Pentecost break)
- May 29, - June 2, 2023
- tbc
Re-registration deadlines
Winter semester
August, 31
Summer semester
February, 28/29
Lecture periods until 2024
Summer semester 2023
April 3, 2023 – July 14, 2023
Winter semester 2023/24
October 9, 2023 – February 2, 2024
All application, admission and enrollment deadlines can be found in the Application Deadlines section.