Tennessee is among five states that plan to add at least 300 hours of learning time to the calendar in some schools starting next year.But Warren County students shouldn’t be concerned, according to Director of Schools Bobby Cox. He doesn’t believe any local schools will be impacted by longer hours.“From what I have been told, they are going to pick schools with the most needs in the state,” said Cox. “These are schools that have been targeted as the worst performing schools under the school improvement plan and we don’t have any of those schools so this wouldn’t affect us at all.”Colorado, Connecticut, Massachusetts and New York are the other states which announced Monday they will take part in the three-year pilot program, which is intended to boost student achievement and make U.S. schools more competitive on a global level.The three-year program will affect almost 20,000 students in 40 schools, with long-term hopes of expanding the program to include additional schools — especially those that serve low-income communities.