Arduino Real Time Clock Bell System Code

#include <Wire.h>
#include "RTClib.h"
#include <Servo.h>
RTC_DS1307 RTC;

int wait1 = 200;
int wait2 = 500;

int tune = 7;
Servo remus;
Servo spin;
void setup () {
  pinMode(A2, OUTPUT);
  digitalWrite(A2, LOW);
  pinMode(A3, OUTPUT);
  digitalWrite(A3, HIGH);
  Serial.begin(9600);
  Wire.begin();
  RTC.begin();

  remus.attach(9);
  remus.write(100);
  delay(500);
  remus.detach();


 
  //Uncomment the line below to reset time. After uploading, re-comment the line and upload again.
  //Otherwise the time will reset every time you start the sketch.
  // RTC.adjust(DateTime(__DATE__, __TIME__));
 
  if (! RTC.isrunning()) {
    Serial.println("RTC is NOT running!");
    // following line sets the RTC to the date & time this sketch was compiled


    //Allows for precise time setting
    //    RTC.setHours(15);
    //    RTC.setMinutes(7);
    //    RTC.setSeconds(5)
  }
}




void loop () {

  printTime1();   //Calls printTime1 method to prints timestamp


/*
 * SET BELL TIMES HERE
 */
//CHECK TIME SECTION
//Use -1 as an input if you want any hour
//FORMAT: checkTime(hour, minute, second).      ring(How many times you want it to ring)
//No need for "== true" because checkTime is a boolean method


  if (checkTime(13, 0, 20))
  {
    ring(1);
  }

  if (checkTime(9, 31, 50)) //
  {
    ring(1);

  }

  delay(1000);
}





//CONTROLS SERVO TO RING BELL
void ring(int n)
{
  for (int i = 0; i < n; i++)
  {
    remus.attach(9);
    remus.write(122);
    delay(300);
    remus.write(100);
    delay(500);
    remus.detach();
  }
}


//PRINTS TIME
void printTime1()
{
  DateTime now = RTC.now();
  Serial.print(now.year(), DEC);
  Serial.print('/');
  Serial.print(now.month(), DEC);
  Serial.print('/');
  Serial.print(now.day(), DEC);
  Serial.print(' ');
  Serial.print(now.hour(), DEC);
  Serial.print(':');
  Serial.print(now.minute(), DEC);
  Serial.print(':');
  Serial.print(now.second() + tune, DEC);
  Serial.println();
}



//CHECKS TO SEE IF RING TIME IS EQUAL TO CURRENT TIME
boolean checkTime(int h , int m, int s)
{
  boolean ho = false;
  boolean mi = false;
  boolean se = false;

  DateTime now = RTC.now();

    if (now.hour() == h || h == -1)
      {
        ho = true;
      }
 
    if (now.minute() == m || m == -1)
      {
        mi = true;
      }
    if (now.second() == (s+tune) || s == -1)     //+ tune corrects the clock's slightly off time which results from uploading.
      {
        se = true;
      }

  if (ho && mi && se)
  {
    return true;
  }

  else
  {
    return false;
  }
}