Minimum amount of instructional times
per school year (by grade, if applicable)
State
In days
1
Minimum number of hours per
school day
In hours
School start/finish
parent-teacher conferences)
† Kindergarten=2.5; grades 1-
12=5.0 14 District option
180 1,080; 1,170 for public high schools † 15 District option
Massachusetts 180 Kindergarten=425; grades 1-5=900;
grades 6-12=990 (excludes lunch, recess,
passing periods, homeroom, non-directed
study periods and time spent receiving
school services or participating in optional
school programs) † District option
Michigan 180 1,098 † Start no earlier than
Labor Day
Maine 175
Maryland
13
16
Minnesota Grades 1-
11=165 Kindergarten=425; full-day
kindergarten=850; grades 1-6=935;
grades 7-12=1,020 † Start no earlier than
Labor Day
Mississippi 180 † 5.5 District option
5-day
week=174; 4-
day week=142 Kindergarten=522; grades 1-12=1,044 5-day week=3.0; 4-day week=4.0 Start no earlier than 10
days prior to the first
Monday in September
Montana † Half-day kindergarten=360; full-day
kindergarten=720; grades 1-3=720;
grades 4-11=1,080; grade 12=1,050 † District option
Nebraska † Kindergarten=400; grades 1-8=1,032;
grades 9-12=1,080 † District option
† Kindergarten=2.0; grades 1-2=4.0;
grades 3-6=5.0; grades 7-12=5.5
(includes recess and time between
lessons; excludes lunch) District option
Grades 1-5=5.8; grades 6-12=6.0
(may include up to 30 minutes of
recess for grades 1-5) District option
Full-day kindergarten=2.5; grades
1-12=4.0 District option
Half-day kindergarten=2.5; full-day
kindergarten=5.5; grades 1-6=5.5;
grades 7-12=6.0 District option
Half-day kindergarten=2.5; full-day
kindergarten=5.0; grades 1-6=5.0;
grades 7-12=5.5 District option
Missouri
180 5 New Hampshire 180 2,17 New Jersey 180 †
† Half-day kindergarten=450; full-day
kindergarten=990; grades 1-6=990;
grades 7-12=1,080
Nevada
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
180
Kindergarten=450; grades 1-5=945;
grades 6-12=990
5
17
18
†
185 2 1,025 † Start no earlier than
Monday closest to 8/19
with approval, otherwise
Monday closest to 8/26.
Finish no later than
Friday closest to 6/11.
175 5 Grades kindergarten-8=952; grades 9-
12=1,038 Half-day kindergarten=2.8; full-day
kindergarten=5.5; grades 1-6=5.5;
grades 7-12=6.0 District option
Half-day kindergarten=455; full-day
kindergarten=910; grades 1-6=910;
grades 7-12=1,001 † District option
6.0 District option
District option
180
2
1,080
5
2