1  #include <time.h>
       2  #include <wchar.h>
       3  
       4  int
       5  main (int argc, char *argv[])
       6  {
       7    wchar_t buf[200];
       8    time_t t;
       9    struct tm *tp;
      10    int result = 0;
      11    size_t n;
      12  
      13    t = time (NULL);
      14    tp = gmtime (&t);
      15  
      16    n = wcsftime (buf, sizeof (buf) / sizeof (buf[0]),
      17  		L"%H:%M:%S  %Y-%m-%d\n", tp);
      18    if (n != 21)
      19      result = 1;
      20  
      21    wprintf (L"It is now %ls", buf);
      22  
      23    wcsftime (buf, sizeof (buf) / sizeof (buf[0]), L"%A\n", tp);
      24  
      25    wprintf (L"The weekday is %ls", buf);
      26  
      27    return result;
      28  }