St. John Bosco High School

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Bell Schedules
Regular Day Schedule: Monday, Tuesday, Friday
(8:00 a.m. - 2:30 p.m.)
6 out of 7 periods tumble on Monday, Tuesday and Friday.
On rare occasions the Regular Day schedule may be used on a Wednesday.
Regular Day periods tumble independently. They do not tumble into Block Day schedule.
Description / Period Start Time End Time Length
Period 1 8:00 AM 8:59 AM 59 min
Period 2 9:04 AM 9:57 AM 53 min
Break 9:57 AM 10:12 AM 15 min
Period 3 10:17 AM 11:10 AM 53 min
Period 4 11:15 AM 12:08 PM 53 min
Lunch 12:08 PM 12:33 PM 25 min
Period 5 12:39 PM 1:32 PM 53 min
Period 6 1:37 PM 2:30 PM 53 min
Block Day: Thursdays (8:00 a.m. - 1:30 p.m.)
3 out of 7 Blocks (90 min.) periods tumble on Wednesday and Thursday.
Block Day periods tumble independently. They do not tumble into Regular Day schedule.
Y Block period is only for faculty and staff. The school day ends at 1:32 p.m.
Description / Period Start Time End Time Length
Period/Block 1 8:00 AM 9:38 AM 98 min
Break 9:38 AM 9:53 AM 15 min
Period/Block 2 9:58 AM 11:28 AM 90 min
Lunch 11:28 AM 11:53 AM 25 min
Period/Block 3 12:00 PM 1:30 PM 90 min
School Day Ends 1:30 PM
Block Day - X: Wednesday Start of Day X Block
Report to Period 3 for attendance and morning prayer. PA will dismiss classes to gym.
Description / Period Start Time End Time Length
Report to Period 3 for attendance and morning prayer 8:00 AM 8:05 AM 5 min
X Block 8:10 AM 9:22 AM 72 min
Break 9:22 AM 9:37 AM 15 min
Period/Block3 9:42 AM 11:02 AM 80 min
Lunch 11:02 AM 11:27 AM 25 min
Period/Block 4 11:34 AM 12:57 PM 83 min
10 min passing break 12:57 PM 1:07 PM 10 min
Period/Block 5 1:07 PM 2:30 PM 83 min
Block Day - X: Wednesday Modified for Morning Mass or Assembly
3 out of 7 Block periods tumble on Wednesday and Thursday. On rare occasions the Block Day X schedule may be used on a a Friday.
Block Day periods tumble independently. They do not tumble into Regular Day schedule.
X Block period in the morning is designated for school mass or special event.
Description / Period Start Time End Time Length
Period/Block 1 8:00 AM 9:30 AM 90 min
Break 9:30 AM 9:45 AM 15 min
X Block (Mass or Morning Assembly) 9:50 AM 11:05 AM 75 min
Lunch 11:05 AM 11:33 AM 28 min
Period/Block 2 11:40 AM 1:00 PM 80 min
10 min passing 1:00 PM 1:10 PM 10 min
Period/Block 3 1:10 PM 2:30 PM 80 min
Block Day - X: Wednesday End of Day Assembly
3 out of 7 Block periods tumble on Wednesday and Thursday. On rare occasions the Block Day X schedule may be used on a Friday.
Block Day periods tumble independently. They do not tumble into Regular Day schedule.
X Block period at the end of the day is designated for school assemblies, rallies or special event.
Description / Period Start Time End Time Length
Period/Block 1 8:00 AM 9:40 AM 100 min
Break 9:40 AM 9:55 AM 15 min
Period/Block 2 10:00 AM 11:30 AM 90 min
Lunch 11:30 AM 11:55 AM 25 min
Period/Block 3 12:02 PM 1:32 PM 90 min
X Block (End of Day Assembly) 1:37 PM 2:30 PM 53 min
Block Day - X: Wednesday, Afternoon Homeroom
(8:00 a.m. - 2:30 p.m.)
3 out of 7 Block periods tumble on Wednesday and Thursday. Block Day periods tumble independently. They do not tumble into Regular Day schedule.
X Block period after lunch is designated for Homeroom activities.
Description / Period Start Time End Time Length
Period/Block 1 8:00 AM 9:40 AM 100 min
Break 9:40 AM 9:55 AM 15 min
Period/Block 2 10:00 AM 11:30 AM 90 min
Lunch 11:30 AM 11:55 AM 25 min
X Block - Homeroom 12:02 PM 12:55 PM 53 min
Period/Block 3 1:00 PM 2:30 PM 90 min
Modified Block: Quarter and Semester Exams
(8:00 a.m. - 11:45 a.m.)
This schedule allows for two 90 minute testing blocks and early dismissal.
Description / Period Start Time End Time Length
Period 1 8:00 AM 9:40 AM 100 min
Break 9:40 AM 10:10 AM 30 min
Period 2 10:15 AM 11:45 AM 90 min
Modified Regular Day
(Dismissal time 2:30 p.m.)
This schedule allows for one 90 minute block.
Period 1 is use in the example below.
Description / Period Start Time End Time Length
Period 1 (testing block) 8:00 AM 9:34 AM 94 min
Period 2 9:39 AM 10:25 AM 46 min
Break 10:25 AM 10:40 AM 15 min
Period 3 10:45 AM 11:31 AM 46 min
Period 4 11:36 AM 12:22 PM 46 min
Lunch 12:22 PM 12:47 PM 25 min
Period 5 12:53 PM 1:39 PM 46 min
Period 6 1:44 PM 2:30 PM 46 min