Time/Date getting access to?

void tyme(void)
{
time_t tim = time(NULL);
printf("\n\n\t\t Time: %s", ctime(&tim));
}

Hi want to be able to take the date or time out so as to append it to a transaction as it occurs in my code. Use the above to display time and date, but unsure how to actually break the time into components, eg min,hour - day,month,year. Can I put these into variables. Anyway not sure how to access them. Looked thru. lots of books with all sorts of details but none showing implementation.
Thanks,
H.

Code:

#include <stdio.h>
#include <time.h>

int main(void)
{
   time_t now;
   if ( time(&now) != (time_t)(-1) )
   {
      struct tm *today = localtime(&now);
      if ( today != NULL )
      {
         const char Iso8601[] = "%Y-%m-%dT%X";
         char buffer[20];
         if ( strftime(buffer, sizeof(buffer), Iso8601, today) > 0 )
         {
            puts(buffer);
         }
      }
   }
   return(0);
}

/* sample output 
2003-04-16T15:01:06
*/