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Average school start time and percentage distribution of school start time, by school type and selected school characteristics: 2017–18

  Average a.m.
start time
  Percentage distribution of start times  
School type and selected
school characteristic
  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.
to 8:59 a.m.
  9:00 a.m.
or later
 
   All schools 8:11   3.5   24.7   43.9   20.4   7.5  
                         
All public schools 8:10   4.3   27.5   40.3   19.8   8.2  
                         
School classification                        
Traditional public 8:11   4.2   27.6   39.7   20.1   8.4  
Charter school 8:05   4.6   26.1   46.9   16.4   5.9  
                         
Community type                        
City 8:10   4.7   27.5   37.5   21.5   8.7  
Suburban 8:15   5.1   23.2   34.8   25.8   11.1  
Town 8:07   3.6   29.3   48.7   13.7   4.8  
Rural 8:06   3.1   31.8   45.7   13.5   5.8  
                         
School level                        
Primary 8:15   1.7   23.5   39.6   25.4   9.9  
Middle 8:05   6.4   36.3   36.6   13.1   7.7  
High 8:03   10.4   32.1   40.0   11.8   5.7  
Combined 8:05   3.2   26.7   51.0   14.4   4.8  
                         
Student enrollment                        
Less than 100 8:15   2.1 ! 16.7   53.0   20.1   8.1  
100–199 8:11   3.8   22.8   45.9   18.8   8.7  
200–499 8:12   2.8   27.4   40.9   21.2   7.7  
500–749 8:11   3.4   28.2   38.3   20.6   9.5  
750–999 8:07   5.4   31.3   38.6   17.4   7.3  
1,000 or more 8:01   13.1   32.8   31.7   15.0   7.4  
                         
Percent of K–12 students who were approved
for free or reduced‑price lunches
                       
0–34 8:16   4.3   23.1   37.0   24.8   10.8  
35–49 8:10   4.0   25.5   41.8   21.4   7.4  
50–74 8:08   3.7   29.5   42.9   16.7   7.2  
75 or more 8:07   4.7   30.5   40.5   17.1   7.2  
                         
All private schools 8:12   1.0   14.9   56.6   22.5   4.9  
                         
School Classification                        
Catholic 8:03   1.7 ! 32.6   55.0   9.2   1.4 !
Other religious 8:13   0.8 ! 9.9   61.4   24.1   3.9  
Nonsectarian 8:19   0.9 ! 6.2   49.9   33.0   10.1  
                         
Community type                        
City 8:12   1.4 ! 15.7   57.5   20.5   4.9  
Suburban 8:12   1.5   15.2   53.6   23.5   6.3  
Town 8:06     18.1   67.2   11.9   2.5 !
Rural 8:13     12.1   55.5   28.5   3.7 !
                         
School level                        
Elementary 8:11   1.0 ! 15.1   55.0   25.7   3.2  
Secondary 8:15   2.0   22.2   49.4   17.2   9.3  
Combined 8:12     12.2   61.9   18.7   6.5  
                         
Student enrollment                        
Less than 100 8:17   0.9 ! 9.1   52.5   30.6   6.9  
100–199 8:09   1.0 ! 16.8   60.4   18.8   3.0  
200–499 8:06   1.3 ! 22.9   60.4   12.4   3.0  
500–749 8:02   1.4 ! 24.2   66.1   3.9 ! 4.4 !
750 or more 8:05     26.8   53.9   18.0   #  
# 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).
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 and Private School Documentation Data Files,” 2017–18.