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Average start time for California public high schools and percentage distribution of start times in public high schools, by selected school characteristics: 2015–16

  Percentage distribution of public high school start times  
Selected school characteristic   Total number of public high schools   Average start time for public high schools (AM)1   Before 8:30 AM   8:30 AM or later  
All public schools   2,350   8:01   81.1   18.9  
                   
Student enrollment                  
Less than 100   530 ! 8:03   72.1   ‡  
100–199   520   8:08   69.3   30.7 !
200–499   360   8:09   84.8   ‡  
500–749   100 ! 7:57   72.6 ! ‡  
750–999   110 ! 8:01   90.0   ‡  
1,000 or more   730   7:51   94.0   6.0 !
                   
Percent of K–12 students who were approved for free or reduced–price lunches                  
0–34   460   7:48   100.0   #  
35–49   180   8:07   69.2   30.8 !
50–74   430   8:05   71.7   28.3 !
75 or more   1,050   8:02   78.4   21.6 !
School did not participate in free or reduced–price lunch program   230 ! 8:10   83.2   16.8 !

# 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.
1In 2015–16, all California public high schools reported AM start times.
NOTE: High schools include any schools where the lowest grade is any of grades 7–12 and the highest grade is any of grades 9–12. 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 Data File," 2015–16.
 

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