#include <LiquidCrystal_I2C.h>  
#include <RTClib.h> // #include <Wire.h>   
LiquidCrystal_I2C lcd(0x27,16,2); 
RTC_DS1307 RTC;
void setup() {   Serial.begin(9600);    RTC.begin();   
  lcd.init();       lcd.backlight(); 
} // RTC.adjust(DateTime(2022,9,30,18,13,40));   

void loop() {  DateTime now=RTC.now();
Serial.print(now.year());   Serial.print("/");
Serial.print(now.month());  Serial.print("/");
Serial.print(now.day());    Serial.print(" ");

Serial.print(now.hour());   Serial.print(":");
Serial.print(now.minute()); Serial.print(":");
Serial.print(now.second()); Serial.print("\n");
  
lcd.setCursor(0,0);    lcd.print("DATE: ");
lcd.print(now.year()); lcd.print("/"); lcd.print(now.month()); lcd.print("/"); lcd.print(now.day());
lcd.setCursor(0,1);    lcd.print("TIME: ");
lcd.print(now.hour()); lcd.print(":"); lcd.print(now.minute()); lcd.print(":"); lcd.print(now.second());
// lcd.clear(); gut
  delay(1000);
}

// #include <uRTCLib.h>//Календарь тоже wokwi.com/projects/412507327505145857