diff --git a/0025-Bring-back-the-setting-of-TZ.patch b/0025-Bring-back-the-setting-of-TZ.patch
new file mode 100644
index 0000000..346502e
--- /dev/null
+++ b/0025-Bring-back-the-setting-of-TZ.patch
@@ -0,0 +1,46 @@
+From f312d9c6f6a4a81066264d85a8e2a663d6ed7d95 Mon Sep 17 00:00:00 2001
+From: David Shea <dshea@redhat.com>
+Date: Wed, 17 Aug 2016 13:49:37 -0400
+Subject: [PATCH] Bring back the setting of $TZ.
+
+Callers expect setting the map location to take effect for times within
+the process, so just throw thread safety to the wind and do it.
+---
+ src/cc-timezone-map.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/src/cc-timezone-map.c b/src/cc-timezone-map.c
+index 1bad664..d7c99d5 100644
+--- a/src/cc-timezone-map.c
++++ b/src/cc-timezone-map.c
+@@ -29,6 +29,7 @@
+ #include "tz.h"
+ #include <librsvg/rsvg.h>
+ #include <string.h>
++#include <stdlib.h>
+ 
+ G_DEFINE_TYPE (CcTimezoneMap, cc_timezone_map, GTK_TYPE_WIDGET)
+ 
+@@ -596,16 +597,19 @@ set_location (CcTimezoneMap *map,
+   {
+     priv->selected_offset = get_location_offset (priv->location);
+     priv->show_offset = TRUE;
++    setenv("TZ", cc_timezone_location_get_zone(location), 1);
+   }
+   else
+   {
+     priv->show_offset = FALSE;
+     priv->selected_offset = 0.0;
++    unsetenv("TZ");
+   }
+ 
+   render_highlight (map);
+   gtk_widget_queue_draw (GTK_WIDGET (map));
+ 
++
+   g_signal_emit (map, signals[LOCATION_CHANGED], 0, priv->location);
+ 
+ }
+-- 
+2.7.4
+
diff --git a/libtimezonemap.spec b/libtimezonemap.spec
index 6102d7d..67fb5d5 100644
--- a/libtimezonemap.spec
+++ b/libtimezonemap.spec
@@ -1,6 +1,6 @@
 Name:           libtimezonemap
 Version:        0.4.5
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Time zone map widget for Gtk+
 
 Group:          System Environment/Libraries
@@ -35,6 +35,7 @@ Patch21:        0021-Added-a-glade-catalog-file.patch
 Patch22:        0022-Fix-compiler-warnings.patch
 Patch23:        0023-Do-not-run-the-checks-as-part-of-make-all.patch
 Patch24:        0024-Fix-issues-with-make-distcheck.patch
+Patch25:        0025-Bring-back-the-setting-of-TZ.patch
 
 BuildRequires:  glib2-devel >= 2.26
 BuildRequires:  gtk3-devel >= 3.1.4
@@ -98,6 +99,9 @@ make check
 %{_datadir}/glade/catalogs/TimezoneMap.xml
 
 %changelog
+* Wed Aug 17 2016 David Shea <dshea@redhat.com> - 0.4.5-4
+- Bring back the setting of $TZ (#1367647)
+
 * Wed Jun 29 2016 David Shea <dshea@redhat.com> - 0.4.5-3
 - Render the map directly from SVG (#1335158)
 - Fix memory leaks in tz.c