#include <RTClib.h>

RTC_DS3231 rtc;

#define LED 13

int Hour;
int Minute; 

void setup() {
  Serial.begin(9600);
  pinMode(LED, OUTPUT);
  rtc.begin();
  rtc.adjust(DateTime(2022, 11, 04, 22, 00, 0));
}


void loop() {
  DateTime now = rtc.now();
  int Hour = now.hour();
  if(Hour >= 6 && Hour <= 18){
    if(digitalRead(LED)){
      digitalWrite(LED, LOW);
    }    
  }
  else if(!digitalRead(LED)){
    digitalWrite(LED, HIGH);
  }
}