diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index 2b06b4e75..cec4ec598 100644
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,3 +1,9 @@
+2014-03-05  Corinna Vinschen  <vinschen@redhat.com>
+
+	* libc/include/time.h (__TM_GMTOFF): Define on Cygwin.
+	(__TM_ZONE): Ditto.
+	(struct tm): Add __TM_GMTOFF and __TM_ZONE members if they are defined.
+
 2014-03-04  Ed Nelson  <ed@nelson305.com>
 
 	* libc/include/machine/_default_types.h: Define unsigned type using
diff --git a/newlib/libc/include/time.h b/newlib/libc/include/time.h
index b91b03920..dcae828f5 100644
--- a/newlib/libc/include/time.h
+++ b/newlib/libc/include/time.h
@@ -28,6 +28,16 @@
 
 _BEGIN_STD_C
 
+#ifdef __CYGWIN__
+# ifdef __BSD_VISIBLE
+#  define __TM_GMTOFF tm_gmtoff
+#  define __TM_ZONE   tm_zone
+# else
+#  define __TM_GMTOFF __tm_gmtoff
+#  define __TM_ZONE   __tm_zone
+# endif
+#endif
+
 struct tm
 {
   int	tm_sec;
@@ -39,6 +49,12 @@ struct tm
   int	tm_wday;
   int	tm_yday;
   int	tm_isdst;
+#ifdef __TM_GMTOFF
+  long	__TM_GMTOFF;
+#endif
+#ifdef __TM_ZONE
+  const char *__TM_ZONE;
+#endif
 };
 
 clock_t	   _EXFUN(clock,    (void));