University holidays

What

Summer holiday: The summer holiday officially begins at the end of the exam period which starts in the beginning of May and ends in the end of June (but if you finish your exams earlier your holiday will be longer). The academic year begins in the beginning or in the middle of September (depends on the university).
Autumn break: The existence, the time and the duration of the autumn break depends on the university, but usually it is one week long in the beginning of November.
Winter break: There is winter break just in the few universities. The winter exam period includes the break which usually starts around the 21st-23rd of December and lasts until the 3rd-5th of January. Winter break means there are no exams in this period.
Spring break: The existence, the time and the duration of the spring break depends on the university, it is usually one week before or one week after the Easter weekend.
One day breaks: The rector or the dean can declare one or half day breaks in the case of special events (e.g. university or faculty days, sport day).