Course Leaf Section Scheduler (CLSS) is our powerful new system and tool that allows users to view, adjust, and report on class scheduling information, and will serve as the primary tool for class scheduling at the University of Nebraska at Omaha.
Course Leaf Section Scheduler (CLSS) Login
CLSS Training Information
CLSS Training:
- Please contact the Office of the University Registrar if you need training on using CLSS
Spring 2025 Schedule Building Timeline
|
Date |
Action |
|
Friday, June 21 |
Refine Mode/Plan Phase
|
|
Monday, August 12 |
January Session Deadline
|
|
Monday, August 26 |
Primetime Meeting Pattern Compliance Review
|
|
Tuesday, September 3 |
Refine Mode/Room Assignment Phase
|
|
Friday, September 27 |
Refine Mode/Publish Phase
|
|
Friday, October 4 |
Refine Mode/Present Phase
|
Enrollment Dates:
Monday, October 21................................. Graduate Enrollment
Wednesday, October 23........................... Senior Enrollment
Friday, October 25.................................... Junior Enrollment
Tuesday, October 29................................ Sophomore Enrollment
Thursday, October 31.............................. Freshman Enrollment
Monday, November 4............................... Open Enrollment
Session Dates:
January 2 – January 17..................... January Session
January 21 – May 16......................... Regular Session
Summer 2025 Schedule Building Timeline
|
Date |
Action |
|
November 4 |
Refine Mode/Plan Phase
|
|
December 2 |
Proof Phase - Primetime Meeting Pattern Compliance Review
|
|
January 3, 2025 |
Refine Mode/Room Assignment Phase
|
|
January 27, 2025 |
Refine Mode/Publish Phase
|
|
February 3, 2025 |
Refine Mode/Present Phase
|
Enrollment Dates:
Monday, February 24................................. Graduate Enrollment
Tuesday, February 25................................ Senior Enrollment
Wednesday, February 26........................... Junior Enrollment
Thursday, February 27.............................. Sophomore Enrollment
Friday, February 28................................... Freshman Enrollment
Monday, March 3....................................... Open Enrollment
Session Dates:
May 27 - July 3..................... Summer Session 1 (First 6 Weeks)
July 7 - August 15................ Summer Session 2 (Second 6 Weeks)
May 27 - August 15............. Summer Session 3 (Full Summer)
Fall 2025 Schedule Building Timeline
|
Date |
Action |
|
November 4 |
Refine Mode/Plan Phase
|
|
December 2 |
Proof Phase - Primetime Meeting Pattern Compliance Review
|
|
January 13, 2025 |
Refine Mode/Room Assignment Phase
|
|
February 17, 2025 |
Refine Mode/Publish Phase
|
|
February 24, 2025 |
Refine Mode/Present Phase
|
Enrollment Dates:
Monday, March 24................................. Graduate Enrollment
Wednesday, March 26........................... Senior Enrollment
Friday, March 28.................................... Junior Enrollment
Tuesday, April 1..................................... Sophomore Enrollment
Thursday, April 3................................... Freshman Enrollment
Monday, April 7...................................... Open Enrollment
Session Dates:
August 25 – December 19..................... Fall Semester
Spring 2026 Schedule Building Timeline
|
Date |
Action |
|
April 1, 2025 |
Refine Mode/Plan Phase
|
|
July 28, 2025 |
Proof Phase - Primetime Meeting Pattern Compliance Review
|
|
August 18, 2025 |
Refine Mode/Room Assignment Phase
|
|
September 29, 2025 |
Refine Mode/Publish Phase
|
|
October 6, 2025 |
Refine Mode/Present Phase
|
Enrollment Dates:
Monday, October 20................................. Graduate Enrollment
Wednesday, October 22........................... Senior Enrollment
Friday, October 24.................................... Junior Enrollment
Tuesday, October 28................................ Sophomore Enrollment
Thursday, October 30.............................. Freshman Enrollment
Monday, November 3................................ Open Enrollment
Session Dates:
January 12 – May 9..................... Spring Semester