diff --git a/src/win32/compat.hpp b/src/win32/compat.hpp
new file mode 100644
index 0000000..8457617
--- /dev/null
+++ b/src/win32/compat.hpp
@@ -0,0 +1,34 @@
+/*
+  Copyright 2010-2012 Grégory Soutadé
+
+  This file is part of KissCount.
+
+  KissCount 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 of the License, or
+  (at your option) any later version.
+
+  KissCount 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 KissCount.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef COMPAT_H
+#define COMPAT_H
+
+#ifdef WIN32
+
+#include <stdlib.h>
+#include <time.h>
+#include <string.h>
+
+struct tm *localtime_r (const time_t *, struct tm *);
+struct tm *gmtime_r (const time_t *, struct tm *);
+
+#endif
+
+#endif
diff --git a/src/win32/gmtime_r.cpp b/src/win32/gmtime_r.cpp
new file mode 100644
index 0000000..15f3395
--- /dev/null
+++ b/src/win32/gmtime_r.cpp
@@ -0,0 +1,52 @@
+/*
+  Copyright 2010-2012 Grégory Soutadé
+
+  This file is part of KissCount.
+
+  KissCount 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 of the License, or
+  (at your option) any later version.
+
+  KissCount 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 KissCount.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+
+#ifdef WIN32
+
+#include "compat.hpp"
+
+// From http://old.nabble.com/Porting-localtime_r-and-gmtime_r-td15282276.html
+struct tm *
+localtime_r (const time_t *timer, struct tm *result)
+{
+   struct tm *local_result;
+   local_result = localtime (timer);
+
+   if (local_result == NULL || result == NULL)
+     return NULL;
+
+   memcpy (result, local_result, sizeof (result));
+   return result;
+}
+
+struct tm *
+gmtime_r (const time_t *timer, struct tm *result)
+{
+   struct tm *local_result;
+   local_result = gmtime (timer);
+
+   if (local_result == NULL || result == NULL)
+     return NULL;
+
+   memcpy (result, local_result, sizeof (result));
+   return result;
+}
+
+#endif