Bell Schedule and Calendars

Bell Schedule and Calendars
Plan Ahead


Challenger's Bell Schedule - New One Lunch Period

Go to our Bell Schedule and Calendar page in the About Us section for details about the one lunch and the Modified Monday schedule starting September 18, 2023.


School Calendars through 2025

The Board of Education has approved the school calendars for the traditional school year for 2023-2024 and 2024-2025.  The start date and end dates are changing so that the start of school will be mid-August and end time will be at the end of May.  The first semester will be end before Winter break.

  • Better alignment with other districts’ athletics because CIF football games begin in August
  • More instructional time for students who take Advanced Placement tests in May
  • Expanded opportunities for exiting seniors to participate in early summer pre-collegiate classes or programs

San Diego Unified School District Traditional School Year Calendar

2023-2024: Classes begin August 21

2024-2025: Classes begin August 12

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