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National Teacher and Principal Survey (NTPS)

Average start time and percentage distribution of start time for public high schools, by state: 2017–18

      Percentage distribution of start times
State Average a.m. start time1   Before 7:30 a.m.   7:30 a.m. to 7:59 a.m.   8:00 a.m. to 8:29 a.m.   8:30 a.m. or later  
United States 8:00   10.4   32.1   40.0   17.5  
                     
Alabama 7:57     56.7   23.0 ! 16.4 !
Alaska 8:26   #   26.1 ! 23.9 ! 50.0 !
Arizona 8:03   11.2 ! 19.9 ! 34.1   34.7 !
Arkansas 8:01     40.5   42.8   12.3 !
California 8:04     30.0   53.8   15.3  
                     
Colorado 7:52     39.1   47.2    
Connecticut 7:39   20.8 ! 50.8      
Delaware 7:51   29.3   33.3 ! 19.3 !  
District of Columbia 8:41   #   #   8.7   91.3  
Florida 7:51   40.0   24.6   12.4 ! 23.0  
                     
Georgia 8:07     22.0   43.9   28.6  
Hawaii 8:07   #   22.7 ! 66.1   11.2 !
Idaho 8:06   #   26.6 ! 53.9   19.6 !
Illinois 8:08     26.5   48.1   22.8  
Indiana 8:00   13.7 ! 17.5 ! 57.2   11.6 !
                     
Iowa 8:16   #   9.6 ! 78.8    
Kansas 7:59   #   29.8   70.2   #  
Kentucky 8:06     26.7 ! 63.9   7.1 !
Louisiana 7:30   55.7   34.2     #  
Maine 7:51     45.2   51.0   #  
                     
Maryland          
Massachusetts 7:38   17.9 ! 71.4      
Michigan 7:49   8.2 ! 58.4   28.9    
Minnesota 8:21   #   13.2 ! 39.7   47.2  
Mississippi 7:52   #   61.8   38.2   #  
                     
Missouri 7:53   15.1 ! 41.4   39.9    
Montana 8:12   #     83.5    
Nebraska 8:13   #     85.1    
Nevada 7:45   29.6   21.7 ! 43.9    
New Hampshire 7:41   24.2   60.2   15.6 ! #  
                     
New Jersey 7:51   14.2   39.7   37.8   8.3 !
New Mexico 7:58   11.4 ! 27.1 ! 40.4   21.1 !
New York 8:02   17.5   25.0   39.7   17.8  
North Carolina 8:11   11.3 ! 21.1   37.9   29.7  
North Dakota 8:11   #   29.4 ! 48.2   22.4 !
                     
Ohio 7:51   18.0   49.8   22.2   10.0 !
Oklahoma 8:04   #   16.1 ! 72.5   11.4 !
Oregon 8:08     13.9   66.0   17.0 !
Pennsylvania 7:48   16.5   49.3   31.6    
Rhode Island 7:46   30.3 ! 27.2 ! 34.1    
                     
South Carolina 8:34   #     41.3   55.7  
South Dakota 8:14   #     66.1    
Tennessee 8:01     34.0   35.1    
Texas 8:07   13.6   20.6   35.7   30.2  
Utah 7:56   #   49.1   44.7    
                     
Vermont 8:06   #   27.4   63.1   9.4 !
Virginia 8:14   5.5 ! 12.4 ! 56.9   25.2  
Washington 7:59     50.9   27.9 !  
West Virginia 7:46   26.3 ! 30.0   32.7   10.9  
Wisconsin 7:54   9.3 ! 49.9   32.7    
Wyoming 7:53   #   62.2   37.8   #  
# Rounds to zero.
! Interpret data with caution. The coefficient of variation (CV) for this estimate is between 30 percent and 50 percent (i.e., the standard error is at least 30 percent and less than 50 percent of the estimate).
‡ Reporting standards not met. The coefficient of variation (CV) for this estimate is 50 percent or greater (i.e., the standard error is 50 percent or more of the estimate) or the response rate is below 50 percent.
1 Schools with afternoon start times were not included in the average.
NOTE: Detail may not sum to totals because of rounding and because some data are not shown.
SOURCE: U.S. Department of Education, National Center for Education Statistics, National Teacher and Principal Survey (NTPS), ""Public School Documentation Data File," 2017–18.