Ohio Northern University 2025-2026 Calendar https://onumusicdept.tandem.co/ Key dates for Ohio Northern University. en-us 8/25/25 First Day of Classes https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72440 72440-onumusicdept@intand.com 8/25/25 Week One https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72441 72441-onumusicdept@intand.com 9/1/25 Labor Day (No Classes) https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72423 72423-onumusicdept@intand.com 9/1/25 Week Two https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72442 72442-onumusicdept@intand.com 9/8/25 Week Three https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72443 72443-onumusicdept@intand.com 9/15/25 Week Four https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72444 72444-onumusicdept@intand.com 9/22/25 Week Five https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72445 72445-onumusicdept@intand.com 9/29/25 Week Six https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72446 72446-onumusicdept@intand.com 10/3/25 - 10/5/25 Homecoming https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72458 72458-onumusicdept@intand.com 10/6/25 Week Seven https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72447 72447-onumusicdept@intand.com 10/13/25 Columbus Day https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72424 72424-onumusicdept@intand.com 10/13/25 - 10/14/25 Fall Break https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72459 72459-onumusicdept@intand.com 10/13/25 Week Eight https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72448 72448-onumusicdept@intand.com 10/20/25 Week Nine https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72449 72449-onumusicdept@intand.com 10/27/25 Week Ten https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72450 72450-onumusicdept@intand.com 10/31/25 Halloween https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72425 72425-onumusicdept@intand.com 11/2/25 Daylight Saving Time Ends https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72427 72427-onumusicdept@intand.com 11/3/25 Week Eleven https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72451 72451-onumusicdept@intand.com 11/10/25 Week Twelve https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72452 72452-onumusicdept@intand.com 11/11/25 Veteran's Day https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72426 72426-onumusicdept@intand.com 11/17/25 Week Thirteen https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72453 72453-onumusicdept@intand.com 11/24/25 - 11/28/25 Thanksgiving Break https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72460 72460-onumusicdept@intand.com 11/24/25 Week Fourteen https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72454 72454-onumusicdept@intand.com 11/27/25 Thanksgiving https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72428 72428-onumusicdept@intand.com 12/1/25 Week Fifteen https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72455 72455-onumusicdept@intand.com 12/8/25 Week Sixteen https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72456 72456-onumusicdept@intand.com 12/15/25 Fall Semester Finals Week https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72457 72457-onumusicdept@intand.com 12/15/25 - 12/19/25 Final Exams https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72461 72461-onumusicdept@intand.com 12/25/25 Christmas Day https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72429 72429-onumusicdept@intand.com 1/1/26 New Year's Day https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72430 72430-onumusicdept@intand.com 1/2/26 J-Term Classes Begin https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72462 72462-onumusicdept@intand.com 1/17/26 J-Term Final Examinations https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72463 72463-onumusicdept@intand.com 1/19/26 Martin Luther King Day (No Classes) https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72431 72431-onumusicdept@intand.com 1/20/26 Spring Semester Classes Begin https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72464 72464-onumusicdept@intand.com 1/20/26 Week One https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72470 72470-onumusicdept@intand.com 1/26/26 Week Two https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72471 72471-onumusicdept@intand.com 2/2/26 Week Three https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72472 72472-onumusicdept@intand.com 2/9/26 Week Four https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72473 72473-onumusicdept@intand.com 2/14/26 Valentine's Day https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72432 72432-onumusicdept@intand.com 2/16/26 President's Day https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72433 72433-onumusicdept@intand.com 2/16/26 Week Five https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72474 72474-onumusicdept@intand.com 2/23/26 Week Six https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72475 72475-onumusicdept@intand.com 3/2/26 Week Seven https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72476 72476-onumusicdept@intand.com 3/8/26 Daylight Saving Time Begins https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72434 72434-onumusicdept@intand.com 3/9/26 - 3/13/26 Spring Break https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72465 72465-onumusicdept@intand.com 3/9/26 Week Eight https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72477 72477-onumusicdept@intand.com 3/16/26 Week Nine https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72478 72478-onumusicdept@intand.com 3/17/26 St. Patrick's Day https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72435 72435-onumusicdept@intand.com 3/23/26 Week Ten https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72479 72479-onumusicdept@intand.com 3/30/26 Week Eleven https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72480 72480-onumusicdept@intand.com 4/3/26 Good Friday (No Classes) https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72466 72466-onumusicdept@intand.com 4/5/26 Easter https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72436 72436-onumusicdept@intand.com 4/6/26 Week Twelve https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72481 72481-onumusicdept@intand.com 4/13/26 Week Thirteen https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72482 72482-onumusicdept@intand.com 4/20/26 Week Fourteen https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72483 72483-onumusicdept@intand.com 4/21/26 Honors Day (No Classes) https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72467 72467-onumusicdept@intand.com 4/27/26 Week Fifteen https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72484 72484-onumusicdept@intand.com 5/4/26 Week Sixteen https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72485 72485-onumusicdept@intand.com 5/5/26 Cinco De Mayo https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72437 72437-onumusicdept@intand.com 5/11/26 - 5/15/26 Final Exams https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72468 72468-onumusicdept@intand.com 5/17/26 Commencement https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72469 72469-onumusicdept@intand.com 5/25/26 Memorial Day https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72438 72438-onumusicdept@intand.com 7/4/26 Independence Day https://onumusicdept.tandem.co/index.php?type=key_date&action=details&id=72439 72439-onumusicdept@intand.com