clock rtclib ds1307

#include "SevSeg.h"
#include <Wire.h>
#include "RTClib.h"
SevSeg Display;
RTC_DS1307 rtc;
unsigned int aa;
unsigned int Time;
//char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
void setup()
{
//  Wire.begin();
  rtc.begin();
  byte numDigits = 4;
  byte digitPins[] = {10, 11, 12, 13};
  byte segmentPins[] = {2, 3, 4, 5, 6, 7, 8, 9};
  bool resistorsOnSegments = true;
  bool updateWithDelaysIn = true;
  byte hardwareConfig = COMMON_ANODE;
  Display.begin(hardwareConfig, numDigits, digitPins, segmentPins, resistorsOnSegments);
  Display.setBrightness(100);
  Serial.begin(57600);
// rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
}
void loop()
{
  DateTime now = rtc.now;
  Serial.println(now.hour(), DEC);
//  Time = now.hour() *100 + now.minute();
//  Display.setNumber(Time);
//  Display.setChars(Time);
//  Serial.println(Time);
  Serial.println();
  delay(3000);
  Display.refreshDisplay();
}