diff --git a/README.md b/README.md
index 783fe29..0afdaf1 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,23 @@
 
 [![](https://images.microbadger.com/badges/version/diouxx/glpi.svg)](http://microbadger.com/images/diouxx/glpi "Get your own version badge on microbadger.com") [![](https://images.microbadger.com/badges/image/diouxx/glpi.svg)](http://microbadger.com/images/diouxx/glpi "Get your own image badge on microbadger.com")
 
+# Table of Contents
+1. [Introduction](#introduction)
+2. [Deploy CLI](#deploy-with-CLI)
+    - [Deploy GLPI without database](#deploy-glpi-without-database)
+    - [Deploy GLPI with existing database](#deploy-glpi-with-existing-database)
+    - [Deploy GLPI with database and persistance container data](#deploy-glpi-with-database-and-persistance-container-data)
+    - [Deploy a specific release of GLPI](#deploy-a-specific-release-of-glpi)
+3. [Deploy docker-compose](#deploy-with-docker-compose)
+4. [Environnment variables](#environnment-variables)
+    - [Timezone](#timezone)
+
+# Introduction
+
 Install and run an GLPI instance with docker.
 
+# Deploy with CLI
+
 ## Deploy GLPI without database
 ```sh
 docker run --name glpi -p 80:80 -d diouxx/glpi
@@ -14,7 +29,7 @@ docker run --name glpi -p 80:80 -d diouxx/glpi
 docker run --name glpi --link yourdatabase:mysql -p 80:80 -d diouxx/glpi
 ```
 
-## Deploy GLPI with database and persistance container data (Recommended)
+## Deploy GLPI with database and persistance container data
 
 For an usage on production environnement or daily usage, it's recommanded to use a data container for persistent data.
 
@@ -40,7 +55,7 @@ Here an example for release 9.1.6 :
 docker run --name glpi --hostname glpi --link mysql:mysql --volumes-from glpi-data -p 80:80 --env "VERSION_GLPI=9.1.6" -d diouxx/glpi
 ```
 
-## Deploy with docker-compose
+# Deploy with docker-compose
 
 To deploy with docker compose, you use *docker-compose.yml* and *mysql.env* file.
 You can modify **_mysql.env_** to personalize settings like :
@@ -55,3 +70,21 @@ To deploy, just run the following command on the same directory as files
 ```sh
 docker-compose up -d
 ```
+
+# Environnment variables
+
+## TIMEZONE
+If you need to set timezone for Apache and PHP
+
+From commande line
+```sh
+docker run --name glpi --hostname glpi --link mysql:mysql --volumes-from glpi-data -p 80:80 --env "TIMEZONE=Europe/Brussels" -d diouxx/glpi
+```
+
+From docker-compose
+
+Modify this settings
+```yml
+environment:
+     TIMEZONE: Europe/Brussels
+```
\ No newline at end of file
diff --git a/docker-compose.yml b/docker-compose.yml
index 03d50e4..63deeef 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -37,4 +37,9 @@ services:
       - mysql:mysql
     volumes_from:
       - glpi-data
+    volumes:
+      - /etc/timezone:/etc/timezone
+      - /etc/localtime:/etc/localtime
+    environment:
+     TIMEZONE: Europe/Brussels
     restart: always