Re: Local time in C on z/OS

[Charles Mills]

Are you POSIX ON or OFF? For POSIX OFF the variable is named _TZ . Try that.

Check the return code from setenv(). Unlikely it is failing, but who knows?

My notes indicate that the environment variable timezone_name *may* be
needed. 

Charles


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
Behalf Of Phil Smith III
Sent: Thursday, August 15, 2019 7:19 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Local time in C on z/OS

Gil provided a promising-looking code snippet, which I tried. Alas, no
change! (I did have to fix the %s to %S, so I'm 100% sure I picked up the
change-I'm cross-compiling using Dignus, which always adds that bit of
vagary: did you get the right object? Etc.).

 

I don't think I missed anything (I'm still forcing CST6CDT; once I get it
working, I'll worry about how to set that):
  time_t ltime;

  static char hhmmss[9];

  struct tm *tmptr;

 

   time(&ltime);                                     /* Get the time */

   setenv("TZ","CST6CDT",1);

   tzset();

   tmptr = localtime(&ltime);               /* Convert to local time */

   strftime( hhmmss, 9, "%H:%M:%S\0", tmptr );

 

   return(hhmmss);                            /* Return the hh:mm:ss */


I still get GMT. This is making me feel VERY stupid. I will look at using
MVS TIME next.


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