/sys$common/syshlp/helplib.hlb CC, Run-time functions, tzset  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Sets and accesses timezone conversion.

  Syntax:

        #include <time.h>

        void tzset (void):

        extern int daylight;

        extern long timezone;

        extern char *tzname[];