Fixes Bug 1993 - Substitutes NTP with Chrony

Change-Id: I36e0d8a0b5ce18c93e0831b277210d6b275fbcca
Signed-off-by: jpedrofonseca@av.it.pt <jpedrofonseca@ua.pt>
diff --git a/jenkins/ci-pipelines/ci_stage_3.groovy b/jenkins/ci-pipelines/ci_stage_3.groovy
index 8ef3031..4587caf 100644
--- a/jenkins/ci-pipelines/ci_stage_3.groovy
+++ b/jenkins/ci-pipelines/ci_stage_3.groovy
@@ -449,10 +449,10 @@
 
                     // Force time sync to avoid clock drift and invalid certificates
                     sshCommand remote: remote, command: 'sudo apt-get update'
-                    sshCommand remote: remote, command: 'sudo apt-get install -y ntp'
-                    sshCommand remote: remote, command: 'sudo service ntp stop'
-                    sshCommand remote: remote, command: 'sudo ntpd -gq'
-                    sshCommand remote: remote, command: 'sudo service ntp start'
+                    sshCommand remote: remote, command: 'sudo apt-get install -y chrony'
+                    sshCommand remote: remote, command: 'sudo service chrony stop'
+                    sshCommand remote: remote, command: 'sudo chronyd -vq'
+                    sshCommand remote: remote, command: 'sudo service chrony start'
 
                  } // stage("Checks before installation")
 ///////////////////////////////////////////////////////////////////////////////////////