#include <Wire.h>
#include <RTClib.h>

RTC_DS1307 rtc;

void setup () {
  Serial.begin(9600);
  Wire.begin();
  rtc.begin();
  
  // Uncomment the following line to set the time
  // rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
}

void loop () {
  DateTime now = rtc.now();
  
  Serial.print(now.year(), DEC);
  Serial.print('/');
  Serial.print(now.month(), DEC);
  Serial.print('/');
  Serial.print(now.day(), DEC);
  Serial.print(' ');
  Serial.print(now.hour(), DEC);
  Serial.print(':');
  Serial.print(now.minute(), DEC);
  Serial.print(':');
  Serial.print(now.second(), DEC);
  Serial.println();
  
  delay(1000);
}