School was scheduled to let out for summer this Thursday, but it turns out, the schools had mistakenly let students out 5 to 10 minutes early on 34 days during the school year.
State law requires students to spend a certain amount of time in the classroom, and the early dismissals put them under the minimum requirement.
The missed time could be made up with one or two extra days, but under state law, the shortened days do not count at all and must be made up in full.
Consequently, students will have to spend an extra 34 days in class this summer and will not be let out for summer break until July 31.
The L.A. Times reports that the extended session will cost the Chino Unified School District about $200,000. However, if the district fails to make up the missed time, it will lose more than $7 million in state funds.