DS1307 Real time clock Datalogger

Using Arduino Programming Questions
6

I partially solved the problem using UNIX time, but now, the delay is being existing yet :disappointed_relieved: Anyone knows how to store the time with precission (using more variables or something like this)??? I tried a lot of methods, but the best option is the next....(I must to repeat that I don´t copy all code, because it has 1500 lines of length. But if you need it, I´ll post it. Thank you to everyone

DateTime now = RTC.now(); //Para obtener el tiempo unix
unsigned long currentTime = now.unixtime();//Obtiene el tiempo UNIX para el tiempo de refresco unicamente
if (currentTime -lastReadTime >= refresh_rate) {

File logFile = SD.open("LOG.txt", O_CREAT | O_WRITE);//O_CREAT | O_WRITE puede cambiarse por FILE_WRITE

lastReadTime = currentTime;

logFile.print(monthDay);
logFile.print("/");
logFile.print(month);
logFile.print("/");
logFile.print(year);

logFile.print(" - ");

logFile.print(hour);
logFile.print(":");
logFile.print(minute);
logFile.print(":");
logFile.print(second);

logFile.print(",");//Separador de columna

for (int l=0; l<numSensoresT; l++)
{
logFile.print(temparray[l]);
if (l < numSensoresT-1)
{
logFile.print(",");
}
else
{
logFile.println();

}
}

logFile.close();

}