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National Teacher and Principal Survey (NTPS)

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

        Percentage distribution of start times
Selected school characteristic   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  
All public schools   8:00   10.4   32.1   40.0   17.5  
                       
School classification                      
Traditional public   8:00   10.7   32.6   40.0   16.7  
Charter school   8:05   8.5   26.6   40.5   24.5  
                       
Community type                      
City   8:06   10.1   25.0   38.9   26.0  
Suburban   7:55   16.7   37.6   27.8   18.0  
Town   8:01   5.4   28.6   53.3   12.7  
Rural   8:00   7.0   35.4   46.4   11.2  
                       
Student enrollment                      
Less than 100   8:12     12.3 ! 57.9   28.0  
100–199   8:15   5.1 ! 17.2   48.6   29.1  
200–499   8:02   6.5   34.7   42.3   16.5  
500–749   7:56   6.6   40.5   44.3   8.6  
750–999   7:54   15.5   39.7   31.2   13.6  
1,000 or more   7:54   18.5   35.9   29.9   15.8  
                       
Percent of K–12 students who were
approved for free or reduced–price
lunches
                     
0–34   8:00   12.2   33.9   33.6   20.3  
35–49   7:57   11.2   35.6   40.3   12.8  
50–74   7:59   10.2   31.6   44.0   14.3  
75 or more   8:04   8.2   28.1   43.8   19.9  
! 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).
1 Schools with afternoon start times were not included in the average time.
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," 2015–16.