diff --git a/install.sh b/install.sh
index 176c197..be94f05 100755
--- a/install.sh
+++ b/install.sh
@@ -101,15 +101,11 @@ deluser -f --remove-home pi
 # Execution automatique de bash a la connexion
 echo "bash" >> /home/allo-gg/.profile
 
-# Définition de la Timezone
-
-# You can make this change permanent for yourself by appending the line
-# 	TZ='Europe/Paris'; export TZ
-# to the file '.profile' in your home directory; then log out and log in again.
-#
-# Here is that TZ value again, this time on standard output so that you
-# can use the /usr/bin/tzselect command in shell scripts:
-# Europe/Paris
+# Définition de la Timezone et activation du service NTP
+timedatectl set-timezone Europe/Paris
+timedatectl set-ntp true
+sed -i '$ d' /etc/systemd/timesyncd.conf
+echo "FallbackNTP=0.arch.pool.ntp.org 1.arch.pool.ntp.org 2.arch.pool.ntp.org 3.arch.pool.ntp.org" >> /etc/systemd/timesyncd.conf
 
 # Autoriser le reboot du module
 echo >> /etc/sudoers