// para p1.exe
#include <time.h>
#include <stdio.h>

main()
{
  int data;
  struct tm *ptr, *gm;
  time_t lt;
  lt=time(NULL);
  gm=gmtime(&lt);
  ptr=localtime(&lt);
  printf("GMTIME ----> ");
  printf(asctime(gm));
  printf("LOCALTIME -> ");
  printf(asctime(ptr));
}


Resultado:
GMTIME ----> Sat Feb 18 09:03:43 2017
LOCALTIME -> Sat Feb 18 09:03:43 2017


// para p2.exe
#include <time.h>
#include <stdio.h>

main()
{
  int data;
  struct tm *ptr, *gm;
  time_t lt;
  lt=time(NULL);
  gm=gmtime(&lt);
  printf("GMTIME ----> ");
  printf(asctime(gm));
  ptr=localtime(&lt);
  printf("LOCALTIME -> ");
  printf(asctime(ptr));
}

Resultado:
GMTIME ----> Sat Feb 18 11:04:00 2017
LOCALTIME -> Sat Feb 18 09:04:00 2017