Clock using Arduino UNO, 16 x 2 LCD Display, and Switches

unsigned long seconds;
int hour = 1; // what hour the program starts with
int minute = 0;


#include <LiquidCrystal.h>
LiquidCrystal lcd(12,11,5,4,3,2);


const int pinone = 8; // the pin that the arduino is reading
const int pintwo = 13; // the pin that the arduino is reading
const int pinthree = 7; // the pin that the arduino is reading
int state = 0;
int statetwo = 0;
int statethree = 0;

void setup() {
   // put your setup code here, to run once:
Serial.begin(9600);

pinMode(pinthree,INPUT);

lcd.begin(16, 2);
lcd.setCursor (0, 0);
lcd.print("This is a clock");
lcd.setCursor (0, 1);
lcd.print("Time:");
seconds = 0;

}

void loop() {

  state = digitalRead(pinone);
  statetwo = digitalRead(pintwo);
  statethree = digitalRead(pinthree);
  
  // put your main code here, to run repeatedly:
Serial.print("Time: ");

Serial.println(seconds);
delay(1000); // 1000 milliseconds = 1 second
seconds=seconds+1;


lcd.setCursor(13,1);
lcd.print(seconds); // display seconds
lcd.print("s");  // 1 second passes


lcd.setCursor(10,1);
lcd.print(minute); // display minutes
lcd.print(":");


lcd.setCursor(7,1);
lcd.print(hour); // display hour
lcd.print(":");



if(statethree == HIGH){ // When switch is pressed it will read HIGH
    
    hour++; // LEFT BUTTON - add a hour

    
    lcd.setCursor(0,0);
    lcd.print("Adjust Hour      ");
}
    else if(state == HIGH){ // When switch is pressed it will read HIGH
    
      minute++; //MIDDLE BUTTON - add a minute

      
      lcd.setCursor(0,0);
      lcd.print("Adjust Minute   ");
    }

    
  else if (statetwo == HIGH){ // When switch is pressed it will read HIGH
    
    lcd.setCursor(0,0);
    lcd.print("[HOUR][MIN] INFO"); //RIGHT BUTTON - show info 
  }


if (seconds >= 60){
  seconds = 0;
  minute = minute + 1;  // count up to a minute
  

  
if (minute >= 60){
minute=0;
hour = hour + 1; // count up to a hour 


 
if (hour == 13){ // clock does not pass 12, after 12, the next number should be 1
hour = 1;


}
}
}
}