#include <TimeLib.h>  
#include <DS3232RTC.h>          // http://github.com/JChristensen/DS3232RTC

DS3232RTC RTC;

void setup() {
  Serial.begin(9600); // inizializza il monitor seriale
  setSyncProvider(RTC.get); // sincronizza il timer di Arduino con i dati presenti
}

void loop() {
  String DataRiferimento = "15-08-2020";  // formato GG-MM-YYYY

  // Data riferimento per cadenze
  tmElements_t DataRif;
  DataRif.Day = DataRiferimento.substring(0,2).toInt();;
  DataRif.Month = DataRiferimento.substring(3,5).toInt();
  DataRif.Year = DataRiferimento.substring(6,10).toInt() - 1970; // because Year is offset from 1970
  const time_t EpochRif = makeTime( DataRif );

  Serial.print( "Result: " );
  Serial.println(EpochRif);

  Serial.print( "Now: " );
  Serial.println(now());

  // unsigned long _now = now();
  // Serial.print( "Now: " );
  // Serial.println(_now);
  

  // tmElements_t T1;
  // tmElements_t T2;

  // T1.Day = 15;
  // T1.Month = 6; 
  // T1.Year = 2021 - 1970; // because Year is offset from 1970

  // T2.Day = 24;
  // T2.Month = 6; 
  // T2.Year = 2021 - 1970; // because Year is offset from 1970

  // // convert T1 and T2 to seconds since 1/1/1970
  // time_t T1sec = makeTime( T1 );
  // time_t T2sec = makeTime( T2 );
  // Serial.print( "T1 in seconds since 1970: " );
  // Serial.println( T1sec );
  // Serial.print( "T2 in seconds since 1970: " );
  // Serial.println( T2sec );

  // // differences in seconds
  // int32_t diff = T2sec - T1sec;
  // Serial.print( "Difference between T1 and T2 in seconds: " );
  // Serial.println( diff/60/60/24 );

  // time_t t = now();
  // Serial.begin(9600); // inizializza il monitor seriale
  // Serial.print(_now);
  delay(5000);
}