60 minutes of playing time (plus up to 15 minutes of overtime) for an NFL game, and the same for College. High School plays 12 minute quarters.
90(+) minutes for a soccer game, in two 45(+) minute halves with a 15 minute break between. Unlike in American football and rugby, in soccer the clock is not stopped when play is interrupted. Instead, up to 5 minutes is added at the end of each half as 'stoppage time'. If the score is drawn at full time, and a decisive result is needed (eg in a knockout cup), overtime may be played, rules vary but a maximum of 30 minutes. After that the result is decided by a penalty shootout.
80 minutes playing time for rugby. Stoppages are shorter than in American football.