Below is the 2012/2013 Academic Calendar of the Olabisi Onabanjo University Ago-Iwoye. The session is to run for 10 months.

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HARMATTAN SEMESTER
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Mon 7th Jan–Mon 21st Jan: Resumption for both freshers and stalites/ Freshers orientation.

Monday, 21st January: Commencement of lectures

Monday, 10th Feb: Registration deadline for both freshers and stalites.

Sun, 10 March: Deadline for registration with penalty.

Fri, 12th April: End of lectures

15th April–19th April: Revision week

24th May: End of semester

3rd June: Consideration of results by senate

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RAIN SEMESTER
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Mon 3rd June: Commencement of rain semester and lectures.

Fri, 23rd August: End of lectures.

26th October–Fri, 30th October: Revision week.

2nd September–27th September: Rain semester examination.

10th October: Consideration of result by the senate.

10th October: End of Session.

To check OOU's school fees for 2012/2013, see http://myschool.com.ng/oou/news/17227/oou-school-fee-structure-for-2012-2013-now-online.html.