Here's a quick overview of SDHS's daily schedule:
 
CLASS SCHEDULE
Period 1    8:10 - 9:15
Period 2    9:20 - 10:25
Period 3    10:30 - 12:05

Lunch A    10:25 - 10:55
Lunch B    10:50 - 11:20
Lunch C    11:15 - 11:45
Lunch D    11:40 - 12:10

Period 4    12:10 - 1:15
Period 5    1:20 - 1:45 (ASAP - Academic Student Advisory Period)
Period 6    1:50 - 2:55

EARLY RELEASE CLASS SCHEDULE - NO PERIOD 5/ASAP
Period 1    8:10 - 9:15
Period 2    9:20 - 10:25
Period 3    10:30 - 12:05

Lunch A    10:25 - 10:55
Lunch B    10:50 - 11:20
Lunch C    11:15 - 11:45
Lunch D    11:40 - 12:10

Period 4    12:10 - 12:30
Period 6    12:35 - 1:00

MONDAY HOMEROOM SCHEDULE
Period 1    8:10 - 9:20
Period 2    9:25 -10:35
Period 3    10:40 - 12:15

Lunch A    10:35 - 11:05
Lunch B    11:00 - 11:30
Lunch C    11:25 - 11:55
Lunch D    11:50 - 12:20

Period 4       12:20 - 1:20
Homeroom   1:25 - 1:40
Period 5          1:45 - 2:45

WEDNESDAY ACTIVITY PERIOD SCHEDULE
Period 1       8:10 - 9:15
Activity Per. 9:15 - 9:30
Period 2       9:35 - 10:35
Period 3       10:40 12:15

Lunch A    10:35 - 11:05
Lunch B    11:00 - 11:30
Lunch C    11:25 - 11:55
Lunch D    11:50 - 12:20

Period 4    12:20 - 1:30
Period 5      1:35 - 2:45

TWO HOUR DELAY SCHEDULE - NO PERIOD 5/ASAP
Period 1    10:10 - 10:54
Period 2    10:59 - 11:41
Period 3    11:46 - 1:19

Lunch A............11:41 – 12:11
Lunch B............12:06 – 12:36
Lunch C............12:31 – 1:01
Lunch D............12:56 – 1:26

Period 4     1:26 - 2:08
Period 5     2:13 - 2:55

TRIMESTER SCHEDULE (Trimester subject to change due to school closings.)
1st Trimester 8/3/16 – 11/4/16
2nd Trimester 11/7/16 – 2/17/17
3rd Trimester 2/21/17 – 5/25/17