Class and Bell Schedule
Glenbrook North High School operates on a green and gold day block schedule divided into four periods. A, B, and C lunch periods are staggered during the third block.
Daily Schedules
Regular Schedule
BLOCK 1 |
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PASSING PERIOD 9 minutes |
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BLOCK 2 |
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PASSING PERIOD 9 minutes |
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LUNCH A 11:21 a.m. - 12:06 p.m. 45 minutes |
BLOCK 3 |
BLOCK 3 11:21 a.m. - 12:51 p.m. 90 minutes |
BLOCK 3 |
LUNCH B |
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BLOCK 3 |
LUNCH C 12:51 - 1:36 p.m. 45 minutes |
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PASSING PERIOD |
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BLOCK 4 |
Students have nine-minute passing periods between blocks during our regular schedule.
- Block 1 | 8 - 9:33 a.m. (93 minutes)
- Block 2 | 9:42 - 11:12 a.m. (90 minutes)
- Block 3
- Lunch A
- Lunch | 11:21 a.m. - 12:06 p.m. (45 minutes)
- Block 3 | 12:06- 1:36 p.m. (90 minutes)
- Lunch B
- Block 3 | 11:21 a.m. - 12:06 p.m. (45 minutes)
- Lunch B | 12:06 - 12:51 p.m. (45 minutes)
- Block 3 | 12:06 - 1:36 p.m. (45 minutes)
- Lunch C
- Block 3 | 11:21 a.m. - 12:51 p.m. (90 minutes)
- Lunch C | 12:51 - 1:36 p.m. (45 minutes)
- Lunch A
- Block 4 | 1:45 - 3:15 p.m. (90 minutes)
Late Arrival Schedule
Block 1
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Frosh SRT 10-10:32 a.m. |
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Peer Group / SSRT 10:32-11:05 a.m. |
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Passing Period 5 minutes |
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Block 2
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Frosh SRT 11:10 - 11:40 a.m. |
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Peer Group / SSRT 11:40 a.m. - 12:10 p.m. |
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Passing Period 5 minutes |
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Lunch A 12:15 - 12:55 p.m. 40 minutes |
Block 3 |
Block 3 12:15 - 1:30 p.m. 75 minutes |
FROSH SRT 12:15 - 12:50 p.m |
Block 3 |
Lunch B |
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Block 3 |
Lunch C 1:30 - 2:10 p.m. 40 minutes |
Peer Group / SSRT 1:30-2:10 p.m. |
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Passing Period |
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Block 4 |
Frosh SRT 2:15 - 2:45 p.m. |
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Peer Group / SSRT 2:45 - 3:15 p.m. |
Students have five-minute passing periods between blocks during our late arrival schedule.
- Block 1 | 10 - 11:05 a.m. (65 minutes)
- Frosh | SRT10-10:32 a.m.
- Peer Group/SSRT | 10:32-11:05 a.m.
- Block 2 | 11:10 a.m. - 12:10 p.m. (60 minutes)
- Frosh SRT | 11:10 - 11:40 a.m.
- Peer Group/SSRT | 11:40 a.m.-12:10 p.m.
- Block 3
- Lunch A
- Lunch | 12:15 - 12:55 p.m. (40 minutes)
- Block | 12:55 - 2:10 p.m. (75 minutes)
- Lunch B
- Block | 12:15 - 12:50 p.m. (35 minutes)
- Lunch | 12:50 - 1:30 p.m. (40 minutes)
- Block | 1:30 - 2:10 p.m. (40 minutes)
- Lunch C
- Block | 12:15-1:30 p.m. (75 minutes)
- Lunch | 1:30-2:10 p.m. (40 minutes)
- FROSH SRT | 12:15 - 12:50 p.m
- Peer Group/SSRT | 1:30-2:10 p.m.
- Lunch A
- Block 4 | 2:15-3:15 p.m. (60 minutes)
- Frosh SRT | 2:15-2:45 p.m.
- Peer Group/SSRT |2:45-3:15 p.m.
To learn more about our late arrival days, please visit the Late Arrival webpage.