diff --git a/files/chrony/chrony.conf.j2 b/files/chrony/chrony.conf.j2
new file mode 100644
index 0000000..1bf112c
--- /dev/null
+++ b/files/chrony/chrony.conf.j2
@@ -0,0 +1,42 @@
+# Use public servers from the pool.ntp.org project.
+# Please consider joining the pool (http://www.pool.ntp.org/join.html).
+#pool 2.pool.ntp.org iburst
+server 0.ch.pool.ntp.org
+server 1.ch.pool.ntp.org
+server 2.ch.pool.ntp.org
+server 3.ch.pool.ntp.org
+
+# Record the rate at which the system clock gains/losses time.
+driftfile /var/lib/chrony/drift
+
+# Allow the system clock to be stepped in the first three updates
+# if its offset is larger than 1 second.
+makestep 1.0 3
+
+# Enable kernel synchronization of the real-time clock (RTC).
+rtcsync
+
+# Enable hardware timestamping on all interfaces that support it.
+#hwtimestamp *
+
+# Increase the minimum number of selectable sources required to adjust
+# the system clock.
+#minsources 2
+
+# Allow NTP client access from local network.
+#allow 192.168.0.0/16
+
+# Serve time even if not synchronized to a time source.
+#local stratum 10
+
+# Specify file containing keys for NTP authentication.
+keyfile /etc/chrony.keys
+
+# Get TAI-UTC offset and leap seconds from the system tz database.
+leapsectz right/UTC
+
+# Specify directory for log files.
+logdir /var/log/chrony
+
+# Select which information is logged.
+#log measurements statistics tracking
\ No newline at end of file
diff --git a/inst-raps.sh b/inst-raps.sh
index 3d4dcda..fb1444a 100755
--- a/inst-raps.sh
+++ b/inst-raps.sh
@@ -129,14 +129,6 @@ echo "export PATH=~/.local/bin:\$PATH" >> ~/.bashrc
 if [ $? -ne 0 ]; then printError "Problem to install ansible";exit; fi
 printSuccess "./.local/bin added in path successfully "
 
-#-----------------------------------------------------------------------------
-# update date and time
-#-----------------------------------------------------------------------------
-printInfo "Update date and time"
-chronyc -a makestep
-if [ $? -ne 0 ]; then printError "Problem to update date and time";exit; fi
-printSuccess "Date and Time updated successfully"
-
 #-----------------------------------------------------------------------------
 # check /root/ansible/.vault_pass.txt exits
 #-----------------------------------------------------------------------------
@@ -147,6 +139,14 @@ if [ ! -f "/root/ansible/.vault_pass.txt" ]; then
 fi
 printSuccess "/root/ansible/.vault_pass.txt exist"
 
+#-----------------------------------------------------------------------------
+# update date and time
+#-----------------------------------------------------------------------------
+printInfo "Update date and time"
+~/.local/bin/ansible-playbook playbook-chrony.yml
+if [ $? -ne 0 ]; then printError "Problem to update date and time";exit; fi
+printSuccess "Date and Time updated successfully"
+
 #-----------------------------------------------------------------------------
 # execute playbook
 #-----------------------------------------------------------------------------
diff --git a/playbook-chrony.yml b/playbook-chrony.yml
new file mode 100644
index 0000000..5b867d0
--- /dev/null
+++ b/playbook-chrony.yml
@@ -0,0 +1,25 @@
+---
+- hosts: localhost
+  tasks:
+
+  - name: install chrony
+    yum:
+      name: chrony
+      state: present
+
+  - name: config time server
+    template:
+       src: chrony/chrony.conf.j2
+       dest: /etc/chrony.conf
+
+  - name: disable chrony ipv6
+    replace:
+      path:  /etc/sysconfig/chronyd
+      regexp: '^OPTIONS=""'
+      replace: 'OPTIONS="-4"'
+   
+  - name: start and active service chronyd
+    systemd:
+      name: chronyd
+      enabled: true
+      state: started