Overtime is usually time spent on the clock while "on-duty" - i.e. still performing their regular police duties, but hours over their standard workweek. Whereas

Overtime is usually time spent on the clock while "on-duty" - i.e. still performing their regular police duties, but hours over their standard workweek. Whereas an off-duty officer might be patrolling a bowling alley parking lot or high school football game - still in uniform, but not on "official police business".