Overloading the << operator error C2804: binary 'operator <<' has too many parameters

Here is my class: ``` #ifndef CLOCK_H #define CLOCK_H using namespace std; class Clock { //Member Variables private: int hours, minutes; void fixTime( ); public: //Getter & settor methods. void setHours(int hrs); int getHours() const; void setMinutes(int mins); int getMinutes() const; //Constructors Clock(); Clock(int); Clock(int, int); //Copy Constructor Clock(const Clock &obj); //Overloaded operator functions void operator+(const Clock &hours); void operator+(int mins); void operator-(const Clock &hours); void operator-(int minutes1); ostream &operator<<(ostream &out, Clock &clockObj); //This however is my problem where i get the error C2804. Saying that it has to many parameters }; #endif ``` All this function is supposed to do is out the values of a clock at different times.