#define DATA 10   
#define LATCH 9   
#define CLOCK 8 
#include <DS1307RTC.h>
#include <TimeLib.h>
#include <Wire.h>   

int data [] = {B01111110,B00110000,B01101101,B01111001,B00110011,B01011011,B01011111,B01110000,B01111111,B01111011};
int start = 0;
int start1 = 0;
int a,b,c,d,m,s = 0;

void setup() {
  pinMode(LATCH, OUTPUT);
  pinMode(CLOCK, OUTPUT);
  pinMode(DATA, OUTPUT);
  Serial.begin(9600);
}

void loop() {
    tmElements_t tm;
    RTC.read(tm);
    Serial.print(tm.Year, DEC);
    Serial.print('/');
    Serial.print(tm.Month, DEC);
    Serial.print('/');
    Serial.print(tm.Day, DEC);
    Serial.print(' ');
    Serial.print(tm.Hour, DEC);
    Serial.print(':');
    Serial.print(tm.Minute, DEC);
    Serial.print(':');
    Serial.print(tm.Second, DEC);
    Serial.println();
    s = tm.Second;
    m = tm.Minute;  
 
    a = s % 10;
    b = s / 10;
    c = m % 10;
    d = m / 10; 
    
    digitalWrite(LATCH, LOW);
    shiftOut(DATA, CLOCK, LSBFIRST, data [a]);
    shiftOut(DATA, CLOCK, LSBFIRST, data [b]);
    shiftOut(DATA, CLOCK, LSBFIRST, data [c]);
    shiftOut(DATA, CLOCK, LSBFIRST, data [d]);
    digitalWrite(LATCH, HIGH);
}