// 방법1
#include <stdio.h>
#include <time.h>

int main ()
{
  time_t current_time;
  struct tm  local_time;

  time ( &current_time );
  localtime_s(&local_time, &current_time);

  int Year   = local_time.tm_year + 1900;
  int Month  = local_time.tm_mon + 1;
  int Day    = local_time.tm_mday;

  int Hour   = local_time.tm_hour;
  int Min    = local_time.tm_min;
  int Sec    = local_time.tm_sec;

  return 0;
} 

// 방법2
#include <time.h>
#include<sys/time.h>

void GetMilSecStr (char *dt)
{
    struct timeval val;
    struct tm *ptm;

    gettimeofday(&val, NULL);
    ptm = localtime(&val.tv_sec);

    memset(dt , 0x00 , sizeof(dt));

    // format : YYMMDDhhmmssuuuuuu
    sprintf(dt, "%04d%02d%02d%02d%02d%02d%06ld"
            , ptm->tm_year + 1900, ptm->tm_mon + 1, ptm->tm_mday
            , ptm->tm_hour, ptm->tm_min, ptm->tm_sec
            , val.tv_usec);
}