Set session timeout to 24 hours.
diff --git a/horizon/files/local_settings/helpdesk_settings.py b/horizon/files/local_settings/helpdesk_settings.py
index 1680e15..155fdf4 100644
--- a/horizon/files/local_settings/helpdesk_settings.py
+++ b/horizon/files/local_settings/helpdesk_settings.py
@@ -23,6 +23,8 @@
     'password_autocomplete': 'on'
 }
 
+SESSION_TIMEOUT = 3600 * 24
+
 INSTALLED_APPS = (
     {%- for plugin_name, plugin in app.plugin.iteritems() %}
     {%- if not plugin_name == 'horizon_theme' %}