On Tuesday night, board members listened to parents' concerns over changes to school bus routes and schedules for dozens of schools in the county beginning in the 2012-13 school year.
Under the plan, 53 schools would have a schedule change between 10 and 50 minutes. There would be no schedule change for 119 schools.
The school system said the changes would save a total of $12 million over the next two years.
Most Wake County schools will keep their current bell schedules, which is welcome news for some parents and students.
"I understand it's a money-saving move on the Wake County public schools and I know that money is tight but I'm just concerned that nobody's looking at the health of the kids," Cary parent Nancy Sullivan said.
Sullivan said online research showed earlier start times for high school students could be associated with bigger problems - including attendance drops and more car crashes.