text: Displays time in proper 24 - hour format
code: void displayTime ( int hh , int mm ) { if ( hh > 10 ) cout << hh << " : " ; else if ( hh < 10 ) cout << "0" << hh << " : " ; if ( mm > 10 ) cout << mm << endl ; else if ( mm < 10 ) cout << "0" << mm << endl ; }