C function displaying the timezone 1

[carrick1]

Hi
I am looking at some code that uses ctime() to convert and display a UTC epoch time to an asci timestamp in the format

"Wed Jun 30 21:49:08 1993\n"

The output does not display the timezone. Is there a function I can use that does the same but will output something like:

"Wed Jun 30 21:49:08 GMT 1993\n"

 

[olded]

If your compiler is POSIX compliant, calling any of the time functions should set the second argument of the gobal timezone array. This works on my Solaris 7 unix box:

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

int
main (void)
{
  char buf[256];
  struct tm *tmptr;
  time_t now;

  tzset ();
  now = time(NULL);
  tmptr = localtime (&now);

  printf ("Timezone is: %s\n", tzname[1]);
}

This prints "PDT" for me. If you want "GMT", I'd search the web. Probably somebody has written an offset.

 

[ArkM]

Use strftime() to format the time text representation as you wish.