Tooth Fairy's Favorite Arduino Project

int ledPin = 3;
int buzzerPin = 2;
int fq = 440;
int startbuttonPin = 12;
int startbuttonPowerPin = 10;
int stopbuttonPin = 8;
int stopbuttonPowerPin = 6;

int val = 6;
int compareval;
int stateofbutton;

const unsigned long sixHour = 21600000;
const unsigned long sevenHour = 25200000;
const unsigned long eightHour = 28800000;
const unsigned long nineHour = 32400000;
const unsigned long tenHour = 36000000;
const unsigned long elevenHour = 39600000;
const unsigned long twelveHour = 43200000;

unsigned long startTime, stopTime, savedTime;
String stringSavedSeconds, stringSavedMilliseconds, selectedChar;
int startState, stopState, s, sIndex, ms, msIndex, msShortIndex, outputNum;

void stopWatch(){
startState = digitalRead(startbuttonPin);
stopState = digitalRead(stopbuttonPin);
digitalWrite(buzzerPin, LOW);
if (startState == HIGH){
  startTime = millis();
  delay(200); // debounce, very needed
  digitalWrite(ledPin, HIGH);
}
if (stopState == HIGH){
  stopTime = millis();
  delay(200); // debounce
  digitalWrite(ledPin, LOW);
  delay(1000);
  savedTime = stopTime - startTime;
  createTime();
  stringSavedSeconds = String(s);   //convert int s to string
  sIndex = stringSavedSeconds.length(); //find length, use as index
  for (unsigned int x = 0; x < sIndex; x++){
    selectedChar = stringSavedSeconds.charAt(x);// find certain number
    outputNum = selectedChar.toInt();  // change string number to int
    indicate(outputNum);
    delay(1000);    //delay between numbers          
    }
    delay(500);
    decimalPoint();
    delay(500);
  stringSavedMilliseconds = String(ms);
  msIndex = stringSavedMilliseconds.length();
  msShortIndex = msIndex - 2; // dont need high precision
    for (unsigned int y = 0; y < msShortIndex; y++){
    selectedChar = stringSavedMilliseconds.charAt(y);
    outputNum = selectedChar.toInt();
    indicate(outputNum);
    delay(1000);    //delay between numbers
    }
  }
}
void createTime(){
  s = int(savedTime/1000); // create seconds
  ms = int(savedTime%1000); //create ms from remainder of saved time
}
void decimalPoint(){
   tone(buzzerPin,fq);// short beep to show decimal point
   delay(25); 
   noTone(buzzerPin);
   digitalWrite(buzzerPin, LOW);
}
void snoozeButton(){    
   if (startState == HIGH){  
   delay(120000); // 2 minutes
  }
}
void indicate(int Nblink)
{
  for (int i = 0; i < Nblink; i++)
  {
    digitalWrite(ledPin,HIGH); 
    delay(400);
    digitalWrite(ledPin,LOW);
    delay(400);
  }
}
void setAlarm(int readyDelay){
digitalWrite(ledPin,HIGH);
delay(100);
digitalWrite(ledPin,LOW);
delay(100);
digitalWrite(ledPin,HIGH);// double quick blink, indicating setAlarm has started 
delay(100);

digitalWrite(ledPin,LOW);// making sure I'm not using extra power from battery
digitalWrite(buzzerPin,LOW);
if (readyDelay == 6){
delay(sixHour);
}
if (readyDelay == 7){ // probably needs a switch statment
delay(sevenHour);
}
if (readyDelay == 8){
delay(eightHour);
}
if (readyDelay == 9){
delay(nineHour);
}
if (readyDelay == 10){
delay(tenHour);
}
if (readyDelay == 11){
delay(elevenHour);
}
if (readyDelay == 12){
delay(twelveHour); 
}
   for (int w = 0; w <= 50; w++)
   {
   tone(buzzerPin,fq);
   delay(400);
   noTone(buzzerPin);
   delay(400);
   snoozeButton();
   }
}

void setup() {
pinMode(ledPin,OUTPUT);
pinMode(buzzerPin,OUTPUT);
pinMode(startbuttonPin, INPUT);
pinMode(stopbuttonPin, INPUT);

pinMode(startbuttonPowerPin, OUTPUT);
pinMode(stopbuttonPowerPin, OUTPUT);
digitalWrite(startbuttonPowerPin, HIGH);
digitalWrite(stopbuttonPowerPin, HIGH);

digitalWrite(ledPin,HIGH);
delay(100);
digitalWrite(ledPin,LOW);
delay(2000);
}

void loop() {
delay(1000);
startState = digitalRead(startbuttonPin);
stopState = digitalRead(stopbuttonPin);
if (stopState == HIGH){
  digitalWrite(ledPin, HIGH);
  delay(50);
  digitalWrite(ledPin, LOW);
  delay(3000);
  while(true){
    stopWatch();
    }
  }
  else{
  compareval = val;
  indicate(val);
  delay(2000);
  startState = digitalRead(startbuttonPin);
  if (startState == HIGH){   
    compareval = val;
    val = val + 1;
  }
  else{
  setAlarm(val); 
}
indicate(val);
delay(2000);
  startState = digitalRead(startbuttonPin);
  if (startState == HIGH){   
    compareval = val;
    val = val + 1;
  }
  else{
  setAlarm(val);  
  }
  if( val > 12){
    val = 6;
    }
  }
}