#include "RTClib.h"

RTC_DS1307 rtc;
char daysOfTheWeek[7][12] = {"Chủ nhật", "Thứ hai", "Thứ ba", "Thứ tư", "Thứ năm", "Thứ sáu", "Thứ bẩy"};

void setup ()
{
   Serial.begin(9600);
   rtc.begin();
}

void loop ()
{
   DateTime now = rtc.now();
   if(now.hour()<=9)
   {
     Serial.print("0");
     Serial.print(now.hour());
   }
   else {
    Serial.print(now.hour());
   }
   Serial.print(':');
   if(now.minute()<=9)
   {
     Serial.print("0");
     Serial.print(now.minute());
   }
   else {
    Serial.print(now.minute());
   }
   Serial.print(':');
   if(now.second()<=9)
   {
     Serial.print("0");
     Serial.print(now.second());
   }
   else {
    Serial.print(now.second());
   }
   Serial.println();

   Serial.print(daysOfTheWeek[now.dayOfTheWeek()]);
   Serial.print(",");
   if(now.day()<=9)
   {
     Serial.print("0");
     Serial.print(now.day());
   }
   else {
    Serial.print(now.day());
   }
   Serial.print('/');
   if(now.month()<=9)
   {
     Serial.print("0");
     Serial.print(now.month());
   }
   else {
    Serial.print(now.month());
   }
   Serial.print('/');
   if(now.year()<=9)
   {
     Serial.print("0");
     Serial.print(now.year());
   }
   else {
    Serial.print(now.year());
   } 
   Serial.println();
   delay(1000);
}