#include <LiquidCrystal_I2C.h>
#include <RTClib.h>

RTC_DS1307 rtc;
LiquidCrystal_I2C lcd(0x27,20,4);


void setup() 
{

  rtc.begin();
  lcd.init();
  lcd.backlight();

  Serial.begin(9600);

  lcd.begin(20,4);
  lcd.setCursor(0,1);
  lcd.print("Real Time Clock(RTC)");
  delay(2000);
  lcd.clear();

}

void loop() 
{

  DateTime now = rtc.now();
  lcd.print("Time: ");
  lcd.print(now.hour());

  lcd.print(':');
  lcd.print(now.minute());

  lcd.print(':');
  lcd.print(now.second());

  delay(1000);
  lcd.clear();
  
}