diff --git a/Custom-Configuration.md b/Custom-Configuration.md
index eb185a6..f31f717 100644
--- a/Custom-Configuration.md
+++ b/Custom-Configuration.md
@@ -14,14 +14,17 @@ __Notice__: If a parameter is not specified in your `config.ini.php` RSS-Bridge
 
 # Available parameters
 
-The configuration file is split into four sections:
+The configuration file is split into sections:
 
+* [system](#system)
 * [cache](#cache)
 * [proxy](#proxy)
 * [authentication](#authentication)
 * [admin](#admin)
 
-_Cache_: This section is all about the caching behaviour of RSS-Bridge
+_System_: This section specifies system specific parameters
+
+_Cache_: This section is all about the caching behavior of RSS-Bridge
 
 _Proxy_: This section can be used to specify a proxy server for RSS-Bridge to utilize for fetching contents
 
@@ -29,6 +32,18 @@ _Authentication_: This section defines parameters to require authentication to u
 
 _Admin_: This section specifies parameters related to the administrator of your instance of RSS-Bridge
 
+## System
+
+This section provides following parameters:
+
+- [timezone](#timezone)
+
+### Timezone
+
+Defines the timezone used by RSS-Bridge. This parameter can be set to any value of the values defined at https://www.php.net/manual/en/timezones.php
+
+The default value is `UTC`.
+
 ## Cache
 
 This section provides following parameters: