The average time a Football player in the National football league player per game really depends on the position they play. Sometimes they play all game. Others end up spending all of the game on the bench. A first string player spends from 30 to 50 minutes.
Offensive and defensive players are on the field for an average of about 30 minutes on the clock or about 65 plays. Special teams spend less time on the field.
The average field time is something that varies by players and by game. This amount of time can vary from 1 play, which lasts about 5 seconds, to half the plays, which may last up to half the game.