2 @section @code{localtime}
5 POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/localtime.html}
7 Gnulib module: localtime
9 Portability problems fixed by Gnulib:
12 On native Windows platforms (mingw, MSVC), this function works incorrectly
13 when the environment variable @code{TZ} has been set by Cygwin.
16 Portability problems not fixed by Gnulib:
19 On some platforms, this function loops forever for values
20 near extrema (such as the year @math{-2**31}):
22 You can use the @code{time_rz} module to work around the problem.
24 On some platforms, this function returns nonsense values for
25 unsupported arguments (like @math{2^56}), rather than failing:
28 Native Windows platforms (mingw, MSVC) support only a subset of time
29 zones supported by GNU or specified by POSIX@. @xref{tzset}.