reduce number of Serial.print

Projects Programming
12 
 if (localtimeB < 10 ) {
        dataFile << "" << "Localtime: " << localtimeA << ":" << "0" << localtimeB << "\n" << endl;}
      else{
        dataFile << "" << "Localtime: " << localtimeA << ":" << localtimeB << "\n" << endl;}

think this if can be embedded in the stream ??? (never tried) ?? reducing ~~50% of the code

dataFile << "" << "Localtime: " << localtimeA << ":" <<  (localtimeB < 10 )?"0":"" << localtimeB << "\n" << endl;