Below is the academic calender for the University of Port Harcourt for 2012/2013 session.

FIRST SEMESTER
1.0 Monday, 29th October, 2012– Friday, 30th November, 2012: Pre-resumption Registration (On-line) for Fresh Students.

2.0 Sunday, 2nd December, 2012 –Friday, 7th December, 2012:

Fresh Students Arrive (3rd December, 2012)
Fresh Students Resume (contact with Student Affairs)
Returning Students Arrive (14th January, 2013)
Registration of Fresh Students (10th December, 2012–25th January, 2013) (Registry/College/Faculties etc.)
Interactive session with Fresh Students
Registration of Returning Students (7th January, 2013 - 25th January, 2013)
Orientation for Fresh Students (14th February, 2013)

3.0 Monday, 28th January, 2013 – Friday, 10th May, 2013:
Lectures begin for Fresh Students (21st January, 2013)
Lectures begin for Returning Students (28th January, 2013)
Late Registration for All Students (End of Registration): 21st Jan.-15th Feb., 2013
Convocation Ceremony (4th-9th February, 2013)
Matriculation (5th April, 2013)
Easter Break (25th March, 2013–1st April, 2013)
Lectures Resume 2nd April, 2013.

Read up more at Uniport Website.