int hours;
int minutes;
int seconds;
//----------------------------------------------------------------------
void loop (void) {
}
//----------------------------------------------------------------------
const char* timerOn[]  {"10:15:32", "14:22:47", "17:19:12"};
void setup (void) {
  Serial.begin (9600);
  for (int i = 0; i < 3; i++) {
  sscanf (timerOn[i], "%d:%d:%d", &hours, &minutes, &seconds);
  Serial.print(hours);Serial.print("  ");
  Serial.print(minutes);Serial.print("  ");
  Serial.println(seconds + 30);
  }
}

/*
  int hours;
  int minutes;
  int seconds;

  char s [90];

  // -----------------------------------------------------------------------------
  void getHrMinSec (const char *time ) {
   sscanf (time, "%d:%d:%d", &hours, &minutes, &seconds);
   Serial.println(hours);
   Serial.println(minutes);
   Serial.println(seconds + 30);
   //sprintf (s, " hr %d, min %2d, sec %2d", hr, min, sec);
   //Serial.println (s);
  }
  //----------------------------------------------------------------------
  void loop (void){
   if (Serial.available ())  {
       char buf [0];
       int n = Serial.readBytesUntil ('\n', buf, sizeof(buf)-1);
       buf [n] = '\0';         // terminate with nul
       getHrMinSec (buf);
   }
  }
  //----------------------------------------------------------------------
  const char* timerOn[]  {"10:15:32", "14:22:47", "17:19:12"};
  void setup (void){
   Serial.begin (9600);
   //getHrMinSec ("10:15:32");
   //getHrMinSec(timerOn[2]);
   sscanf (timerOn[2], "%d:%d:%d", &hours, &minutes, &seconds);
  }
*/
/*
  //-----------------------------------------------------------------
  void setup() {
  Serial.begin(115200);
  delay(100);
  my_old();
  Serial.println("");
  my_new();
  }
  //-----------------------------------------------------------------
  void loop() {}
  //-----------------------------------------------------------------
  void my_old() {
  String timerOn[]  {"10:15:32", "14:22:47", "17:19:12"};
  int hours;
  int minutes;
  int seconds;
  for (int i = 0; i < 3; i++) {
    Serial.println(timerOn[i]);
  }
  for (int i = 0; i < 3; i++) {
    hours = (timerOn[i].substring(0, 2)).toInt();
    minutes = (timerOn[i].substring(3, 6)).toInt();
    seconds = (timerOn[i].substring(6, 8)).toInt();
    Serial.print("hours: " ); Serial.print(hours);
    Serial.print("  minutes: " ); Serial.print(minutes);
    Serial.print("  seconds: " ); Serial.println(seconds);
  }
  }
  //-----------------------------------------------------------------
  void my_new() {
  const char* timerOn[]  {"10:15:32", "14:22:47", "17:19:12"};
  for (int i = 0; i < 3; i++) {
    Serial.println(timerOn[i]);
  }
  Serial.print("hours: " ); Serial.print(10);
  Serial.print("  minutes: " ); Serial.print(15);
  Serial.print("  seconds: " ); Serial.println(32);
  Serial.print("hours: " ); Serial.print(14);
  Serial.print("  minutes: " ); Serial.print(22);
  Serial.print("  seconds: " ); Serial.println(47);
  Serial.print("hours: " ); Serial.print(17);
  Serial.print("  minutes: " ); Serial.print(19);
  Serial.print("  seconds: " ); Serial.println(12);
  }
*/