Philadelphia School District: Many students start school at the new time in September, but their families don’t know the specifics Students in the Philadelphia School District have 50 days left before the first day of school. There is only one problem: after the school district took down the incomplete list of new school opening times posted on its website last week, no one knew when their courses would start. On Thursday, the school principal, Evelyn Nuñez, sent an email to the school district’s families concerning changes in the school’s start and end times. Officials announced that the school day would be revised. Come back in may.