#include <LiquidCrystal.h>
const int rs = 7;  
const int en = 6;   
const int d4 = 12;  
const int d5 = 10;  
const int d6 = 9;   
const int d7 = 8;   

LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

void setup() {
 
  lcd.begin(16, 2);
 
  lcd.print("Gecen Saniye: ");
}

void loop() {
  lcd.setCursor(0, 1);
  lcd.print("");
  lcd.print(millis() / 1000);
}