relational operators in class time

[MMJ1989]

hello hello hello simply i have this code . and i need help to modify or change >= operators in class .

#include using namespace std ;

class time
{
private :
int hour ;
int minute ;
int second ;
public :
time ()
{}
time (int h , int m , int s ) : hour ( h) , minute (m) , second(s)
{}
void get ()
{
cin >> hour >> minute >> second ;
}
void show ()
{
cout << hour << " : " << minute << " : " << second << endl ;
}

   bool operator >= ( time r ) 
   { 
	   if ( hour >= r.hour  ) 
		   {
			  if ( hour > r.hour ) 
			  { 
				  return true ; 
			  }
			  else 
			  {
				  if ( minute >= r.minute ) 
				  {
					  if ( second >= r.second ) 
						  return true ; 
						else 
							return false ; 
				  } else { 
					  return false ; 
				  }
			  }
			   
		   }  
	   else 
		   return false ; 
   } 

};

int main ()
{
time a, b ;
a.get() ;
b.get() ;

a.show() ; 
b.show () ; 

if ( a >= b ) 
	cout << "true  \\n" ; 
else 
	cout << "not true \\n" ; 

return 0 ; 

}

[Lakamraju Raghuram]

Change to what?