The academic year at Chulalongkorn University is divided into two distinct semesters, the First Semester and the Second Semester, each spanning approximately 15 weeks. The semesters are separated by winter and summer breaks, and enrollment in classes is required for both semesters. The summer session is an optional time for students to further their education.
Semester
First Semester
Second Semester
Summer Session (Optional)
Duration
August – December
January – May
June – July
Classes Begin
2nd week of August
2nd week of January
2nd week of June
Classes End
3rd week of December
3rd week of May
3rd week of July
Academic Calendar
Start and End Dates of Semesters – Academic Year 2025