/* Convert UTC calendar time to simple time. Like mktime but assumes UTC. Copyright (C) 1994, 1997, 2003-2004, 2006-2007, 2009-2015 Free Software Foundation, Inc. This file is part of the GNU C Library. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, see . */ #ifndef _LIBC # include #endif #include #ifndef _LIBC # undef __gmtime_r # define __gmtime_r gmtime_r # define __mktime_internal mktime_internal # include "mktime-internal.h" #endif time_t timegm (struct tm *tmp) { static time_t gmtime_offset; tmp->tm_isdst = 0; return __mktime_internal (tmp, __gmtime_r, &gmtime_offset); }