Each semester includes at least thirteen (13) weeks of classes and at least two (2) weeks for exams.
Fall Semester:
The Fall Semester starts in the beginning of October.
Public holidays during the fall semester are:
- October 28 (celebration of the day when Greece refused to accept the Italian ultimatum in 1940 during WWII)
- November 17 (celebration of the 1973 student unrest in Athens Polytechnic during the period of dictatorship in Greece)
- December 24 to January 6 (Christmas Holidays)
- January 30 (celebration of the Three Hierarchs – patron saints of education)
Spring Semester:
Spring Semester starts in the beginning of February.
Public holidays during the spring semester are:
- Monday of Lent (the beginning of the Great Lent before Easter)
- March 25 (celebration of the Greek Independence Day)
- The Holy Week and the Bright Week (Easter vacation)
- May 1 (Labour Day)
- Student elections day and the day after (determined by the student unions)