When Halloween falls on a Friday in communities where high school football is king, it's time to reschedule the holiday.

Many U.S. cities and counties are moving their door-to-door rituals this year to avoid conflicts with the Friday night lights.

Martinsburg, West Virginia, city manager Mark Baldwin says local law enforcement agencies will be stretched thin by patrolling football games on Oct. 31. He says it made sense for the local trick-or-treat time to be moved to the next day.

Safety concerns prompted Lorain County, Ohio, to move its trick-or-treat date to Oct. 30. Virginia Haynes of the Lorain County Community Alliance says having it a day earlier will avoid traffic problems with Friday night football games.