VMS Help CC, Run-time functions, asctime, asctime_r  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Converts a broken-down time into a 26-character string in the
  following form:

  Sun Sep 16 01:03:52 1984\n\0

  All fields have a constant width.

  asctime_r puts the result into a user-specified buffer.

  asctime puts the result into thread-specific static memory
  allocated by the Compaq C RTL, which can be overwritten by
  subsequent calls to ctime or asctime; you must make a copy if you
  want to save it.

  Syntax:

       #include <time.h>

       char *asctime(const struct tm *timeptr);

       char *asctime_r(const struct tm *timeptr, char *buffer);
       [posix1]