#include "LiquidCrystal_I2C.h"
#include "iarduino_RTC.h"
#include "Wire.h" 
 
iarduino_RTC time(RTC_DS1307);
#define I2C_ADDR    0x27
#define LCD_COLUMNS 20
#define LCD_LINES   4
LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

void setup () {
  delay(300);
  Serial.begin(9600);
  time.begin();
  time.settime(0, 30, 18, 12, 6, 20, 5); // 0  сек, 30 мин, 18 часов, 12, июня, 2020, четверг
  
  lcd.init();
  lcd.backlight();
}

void loop () {
  if (millis()%1000==0){
    lcd.setCursor(0,0);
    lcd.print(time.gettime("d M Y, D"));
    lcd.setCursor(4,1);
    lcd.print(time.gettime("H:i:s"));
    delay(1);
  }
}