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Daily Schedules, Lengths of Terms, and Class Periods


The school year is 182 days divided into two semesters. There are nine, 45-minute class periods per school day, except on Mondays, during early release days, and final exams. All classes meet 5 periods a week unless otherwise stated.

Class Schedules & Final Exam Schedule

Daily Class Schedule
PERIOD TIME
1 7:25 - 8:10 a.m.
2 8:15 - 9:00 a.m.
3 9:05 - 9:50 a.m.
4 9:55 - 10:40 a.m.
5 10:45 - 11:30 a.m.
6 11:35 a.m. - 12:20 p.m.
7 12:25 - 1:10 p.m.
8 1:15 - 2:00 p.m.
9 2:05 - 2:50 p.m.


Late Start Monday Class Schedules
PERIOD TIME
1 8:10 - 8:50 a.m.
2 8:55 - 9:35 a.m.
3 9:40 - 10:20 a.m.
4 10:25 - 11:05 a.m.
5 11:10 - 11:50 a.m.
6 11:55 a.m. - 12:35 p.m.
7 12:40 - 1:20 p.m.
8 1:25 - 2:05 p.m.
9 2:10 - 2:50 p.m.
For more information on late start days, download the Course Learning Team Late Start schedule and information (PDF).


Early Dismissal Schedule
PERIOD TIME
1 7:25 - 7:57 a.m.
2 8:02 - 8:34 a.m.
3 8:39 - 9:11 a.m.
4 9:16 - 9:48 a.m.
5 9:53 - 10:25 a.m.
6 10:30 - 11:02 a.m.
7 11:07 - 11:39 a.m.
8 11:44 a.m. - 12:16 p.m.
9 12:21 - 12:53 p.m.


Final Examination Schedule
​Day 1
​Day 2
​Day 3
​7th Period
9:25 - 10:35 a.m.​ ​1st Period
9:25 - 10:35 a.m. ​3rd Period
9:25 - 10:35 a.m.
​8th Period
​10:45 - 11:55 a.m.
​2nd Period
10:45 - 11:55 a.m. ​4th Period
10:45 - 11:55 a.m.
​9th Period
​12:05 - 1:15 p.m.
​5th​ Period
​12:05 - 1:15 p.m. ​6th Period
​12:05 - 1:15 p.m.

Community High School
District 155
1 South Virginia Road
Crystal Lake IL 60014
Phone: 815-455-8500