Nok Yang Dong 375-2 | Uijongbu, Republic of Korea | 480-600 | 031-855-1276 The academic calendar consists of 180 days of instruction. There are two semesters divided into two grading periods each. Instructional days are from 8:25 to 2:50 Monday through Friday. The school year begins in the middle of August and ends the early part of June.  *Due to unexpected circumstances, ICS-UJB reserves the right to modify the calendar if necessary.      2010-2011 New Calendar