diff --git a/scripts/_common.sh b/scripts/_common.sh
index 5b214a9..5008fb6 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -6,6 +6,9 @@
 
 nodejs_version=16
 
+# Used in .env
+timezone="$(cat /etc/timezone)"
+
 #=================================================
 # PERSONAL HELPERS
 #=================================================
diff --git a/scripts/install b/scripts/install
index 88e7af9..8453120 100755
--- a/scripts/install
+++ b/scripts/install
@@ -16,8 +16,6 @@ source /usr/share/yunohost/helpers
 secretkey=$(ynh_string_random --length=12)
 ynh_app_setting_set --app=$app --key=secretkey --value="$secretkey"
 
-timezone="$(cat /etc/timezone)"
-
 #=================================================
 # INSTALL DEPENDENCIES
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 46548b0..597450e 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -18,12 +18,6 @@ ynh_script_progression --message="Stopping a systemd service..." --weight=1
 
 ynh_systemd_action --service_name="$app" --action="stop" --log_path="/var/log/$app/$app.log"
 
-#=================================================
-# INITIALIZE AND STORE SETTINGS
-#=================================================
-
-timezone="$(cat /etc/timezone)"
-
 #=================================================
 # UPGRADE DEPENDENCIES
 #=================================================