SD Module - Writing timestamp to txt file & data from sensors

void loop() {
int  count = 0;

  u8g.firstPage();
  do {
    draw();
  } while ( u8g.nextPage() );

  delay(2000);

  if (count < 5){

      count++;
  }
  else if (count = 5){
        myFile = SD.open(filename, FILE_WRITE);

      myFile.print(timeStamp());
      myFile.print(" ");
      myFile.print(dht.readHumidity());
      myFile.print(" ");
      myFile.println(dht.readTemperature());
      // close the file:
      myFile.close();
      Serial.println(" done.");
  }

}