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Table 5.14. Number of instructional days and hours in the school year, by state: 2014–15

  Minimum amount of instructional times/year (by grade, if applicable)   Minimum time for any day to count as instructional day   School start/finish      
  In days 1 In hours          
Alabama 180 or the hourly equivalent     6.0 hours   District option      
Alaska 180 2 Grades kindergarten-3=740; grades 4-12=900 3 Grades 1-3=4.0 hours; grades 4-12=5.0 hours   District option      
Arizona 180   Kindergarten=356; grades 1-3=712; grades 4-6=890; grades 7-8=1,000; grades 9-12=students must enroll in at least 4 subjects that meet at least 720 hours     District option      
Arkansas 178 2   6.0 hours/day or 30.0 hours/week   Start on or after the Monday of the week in which 8/19 falls; no earlier than 8/14 and no later than 8/26 4    
California 180/175 5 Kindergarten=600; grades 1-3=840; grades 4-8=900; grades 9-12=1,080   Kindergarten=3.0 hours; grades 1-3=3.8 hours; grades 4-12=4.0 hours   District option      
Colorado 160   Half-day kindergarten=435; full-day kindergarten=870; grades 1-5=968; grades 6-12=1,056 (excludes parent-teacher conferences and staff in-service programs)     District option      
Connecticut 180   Half-day kindergarten=450; full-day kindergarten=900; grades 1-12=900   6 District option      
Delaware   Grades kindergarten-11=1,060; grade 12=1,032   3.5 hours   District option      
District of Columbia 180     Grades 1-12=6.0 hours (includes lunch and recess)   District option (single district)      
Florida 180   Grades kindergarten-3=720; grades 4-12=900 7   District option, but school must start no earlier than 14 days before Labor Day      
Georgia 180   Grades kindergarten-3=810; grades 4-5=900; grades 6-12=990   Grades kindergarten-3=4.5 hours; grades 4-5=5.0 hours; grades 6-12=5.5 hours   District option      
Hawaii 180 8 Grades kindergarten-6=915; grades 7-12=990 9   District option (single district)      
Idaho   Kindergarten=450; grades 1-3=810; grades 4-8=900; grades 9-12=990 10   District option      
Illinois 180 2   Half-day kindergarten=2.0 hours; full-day kindergarten-1=4.0 hours; grades 2-12=5.0 hours   District option      
Indiana 180     Grades 1-6=5.0 hours; grades 7-12=6.0 hours   District option      
Iowa 180   1,080   Grades 1-12=6.0 hours/day or 30.0 hours/week (includes parent-teacher conferences)   Start no earlier than a day of the week in which 9/1 falls. If 9/1 falls on a Sunday, school may begin on a day of the week immediately preceding 9/1      
Kansas Grades kindergarten-11=186; grade 12=181   Kindergarten=465; grades 1-11=1,116; grade 12=1,086   5.0 hours/day   District option      
Kentucky 170 11 1,062     District option      
Louisiana 177 2 1,062   6.0 hours   District option      
Maine 175 11     District option 12    
Maryland 180   1,080; grades 8-12=1,170     District option      
Massachusetts 180   Kindergarten=425; grades 1-5=900; grades 6-12=990     District option      
Michigan 175 13 Grades kindergarten-12=1,098     Start no earlier than Labor Day      
Minnesota Grades 1-11=165 14 Kindergarten=425; all-day kindergarten=850; grades 1-6=935; grades 7-12=1,020     Start no earlier than Labor Day      
Mississippi 180     5.5 hours   District option      
Missouri 5-day week=174; 4-day week=142   1,044   5-day week=3.0 hours;4-day week=4.0 hours   District option, but start no earlier than 10 days prior to the first Monday in September      
Montana   Half-day kindergarten=360; grades kindergarten-3=720; grades 4-12=1,080 15   District option      
Nebraska   Kindergarten=400; grades 1-8=1,032; grades 9-12=1,080     District option      
Nevada 180 2   Kindergarten=2.0 hours; grades 1-2=4.0 hours; grades 3-6=5.0 hours; grades 7-12=5.5 hours (includes recess and time between lessons)   District option      
New Hampshire 180   Kindergarten=450; grades 1-5=945; grades 6-12=990 16 Grades 1-5=5.8 hours; grades 6-12=6.0 hours (grades kindergarten-6 hours include recess)   District option      
New Jersey 180     Full-day kindergarten=2.5 hours; grades 1-12=4.0 hours   District option      
New Mexico   Half-day kindergarten=450; full-day kindergarten=990; grades 1-6=990; grades 7-12=1,080 17 Half-day kindergarten=2.5 hours; full-day kindergarten=5.5 hours; grades 1-6=5.5 hours; grades 7-12=6.0 hours   District option      
New York 180     Half-day kindergarten=2.5 hours; full-day kindergarten=5.0 hours; grades 1-6=5.0 hours; grades 7-12=5.5 hours   District option      
North Carolina 185   1,025     District option, but 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      
North Dakota 175 11 Grades kindergarten-8=952; grades 9-12=1,038   Grades kindergarten-6=5.5 hours; grades 7-12=6.0 hours   District option      
Ohio   Half-day kindergarten=455; full-day kindergarten=910; grades 1-6=910; grades 7-12=1,001 18   District option      
Oklahoma 180   1,080 19 6.0 hours   District option      
Oregon   Kindergarten=405; grades 1-3=810; grades 4-8=900; grades 9-12=990 20 21 District option, but no fewer than 265 consecutive calendar days between first and last instructional day      
Pennsylvania 180   Kindergarten=450; grades 1-8=900; grades 9-12=990   Kindergarten=2.5 hours; grades 1-8=5.0 hours; grades 9-12=5.5 hours   District option      
Rhode Island 180   1,080 22 Kindergarten=2.8 hours; grades 1-12=5.5 hours   District option      
South Carolina 180 11   6.0 hours (elementary includes lunch)   District option, but start no earlier than third Monday in August      
South Dakota   Kindergarten=438; grades 1-5=875; grades 6-12=963 23   District option      
Tennessee 180 11   6.5 hours   District option, but start no earlier than 8/ 1      
Texas 180     7.0 hours (includes recess and break hours)   Start no earlier than the fourth Monday in August (unless waiver granted)      
Utah 180   Kindergarten=450; grade 1=810; grades 2-12=990   Kindergarten=2.0 hours; grades 1-12=4.0 hours   District option      
Vermont 175     Kindergarten=2 hours/day or 10.0 hours/week; grades 1-2=4.0 hours/day or 20.0 hours/week (includes recess); grades 3-8=5.5 hours/day or 27.5 hours/week (includes recess); grades 9-12= 5.5 hours or 27.5 hours per week   Determined regionally      
Virginia 180   Kindergarten=540; grades 1-12=990   Kindergarten=3.0 hours; grades 1-12=5.5 hours   District option, but start after Labor Day (unless waiver granted)      
Washington 180   Kindergarten=450; grades 1-12=1,000 24   District option      
West Virginia 180     Grades kindergarten-4=5.3 hours; grades 5-8=5.5 hours; grades 9-12=5.8 hours   District option      
Wisconsin 25 Half-day kindergarten=437; full-day kindergarten=1,050; grades 1-6=1,050; grades 7-12=1,137 (includes recess and passing time) 11   Start no earlier than 9/1      
Wyoming 175   Kindergarten=450; elementary=900; middle/junior high=1,050; secondary=1,100     District option      
† Not applicable. State does not have a requirement in this category.
1 For more detailed information on state-level instructional time in days and hours, please refer to the table referenced in the SOURCE portion of this table. The table may be accessed at:      
2 May include in-service professional development days, staff development, parent-teacher conferences, planning, or similar activities.      
3 For all grades, hours only apply if the board submits an acceptable plan under which students will receive the educational equivalent of 180 days.      
4 School year may begin on 8/18 only if it falls on a Monday; otherwise, the school year may begin no earlier than 8/19.      
5 Through 2014–15, districts in California were allowed to shorten the instructional year by 5 days without fiscal penalty.      
6 In Connecticut, districts may count up to 7 hours/day toward the total required for the year.      
7 For schools on double-session or approved experimental calendar: Grades kindergarten-3=630 hours and grades 4-12=810 hours.      
8 Hawaii's requirement of 180 days of instructional time per year does not apply to charter and/or multi-track schools and excludes professional development days.      
9 In the 2015–16 school year, Hawaii's minimum instructional time was grades kindergarten-6=915 hours and grades 7-12=990 hours; grades kindergarten-12=1,080 hours for 2016–17 and 2017–18 school years; grades kindergarten-12=1,146 hours for 2018–19 school years. These hours do not apply to charter schools and/or multi-track schools.      
10 In Idaho, instructional time for grade 12 may be reduced by up to 11 hours. The instructional hours include 22 hours for staff development.      
11 May exclude professional development days, in-service education, planning, parent-teacher conferences, and similar activities.      
12 Districts must work within regional units to coordinate with their career and technical center units to ensure that, among other requirements, there are not more than 5 dissimilar instructional days within each regional calendar.      
13 Beginning in the 2016–17 school year, the minimum amount of instructional days is 180. The instructional days for Michigan may differ if a collective bargaining agreement that includes a different and complete school calendar was in effect as of August 1, 2013.      
14 The days may differ if the commissioner has approved a 4-day week schedule.      
15 For graduating seniors,1,050 aggregate hours is sufficient. The instructional hours in Montana also include an additional 3 days for instructional and professional development.      
16 The school year for high school seniors in New Hampshire may be reduced by up to 5 days or 30 hours.      
17 Thirty-three hours of the full-day kindergarten program and twenty-two hours of grades 1-5 may be used for home visits by the teacher or for parent-teacher conferences. Twelve hours of grades 7-12 may be used to consult with parents or for parent-teacher conferences.      
18 In 2014, the instructional time in Ohio was changed from minimum days to minimum hours. Grades kindergarten-6 includes two 15-minute recesses. For all grades, instructional time includes up to 2 days of professional development and 2 days for parent conferences and reporting.      
19 In Oklahoma, instructional hours include up to 30 hours used for professional meetings and 6 hours per semester for parent-teacher conferences.      
20 May be reduced by up to 30 hours for seniors, and for staff development, pupil transportation schedules, or other local program scheduling arrangements.      
21 Oregon sets maximum, rather than minimum, hours/day: grades kindergarten-3=6.0 hours, grades 4-8=6.5 hours, and grades 9-12=7.0 hours.      
22 As long as minimum hours are met, instructional days may total less than 180 days if using a longer school day.      
23 School boards may release graduating seniors prior to the end of the school year.      
24 Starting in the 2015–16 school year, grades 1-9=1,000 hours and grades 9-12=1,080 hours. By the 2017–18 school year, Washington will transition from 450 hours to statewide full-day kindergarten.      
25 Changed from minimum days to minimum hours in 2014.      
SOURCE: Education Commission of the States, Number of Instructional Days/Hours in the School Year, retrieved October 3, 2016, from