diff --git a/rootfs-builder/centos/config.sh b/rootfs-builder/centos/config.sh
index 07637a9611..8f80d1f3e9 100644
--- a/rootfs-builder/centos/config.sh
+++ b/rootfs-builder/centos/config.sh
@@ -22,7 +22,7 @@ GPG_KEY_URL="https://www.centos.org/keys/RPM-GPG-KEY-CentOS-7"
 
 GPG_KEY_FILE="RPM-GPG-KEY-CentOS-7"
 
-PACKAGES="iptables"
+PACKAGES="iptables chrony"
 
 #Optional packages:
 # systemd: An init system that will start kata-agent if kata-agent
diff --git a/rootfs-builder/clearlinux/config.sh b/rootfs-builder/clearlinux/config.sh
index 9f534c9a35..2066483353 100644
--- a/rootfs-builder/clearlinux/config.sh
+++ b/rootfs-builder/clearlinux/config.sh
@@ -15,7 +15,7 @@ clr_url="https://download.clearlinux.org"
 
 BASE_URL="${clr_url}/releases/${OS_VERSION}/${REPO_NAME}/${ARCH}/os/"
 
-PACKAGES="iptables-bin libudev0-shim"
+PACKAGES="iptables-bin libudev0-shim chrony"
 
 #Optional packages:
 # systemd: An init system that will start kata-agent if kata-agent
diff --git a/rootfs-builder/euleros/config.sh b/rootfs-builder/euleros/config.sh
index d6b412317d..3d5762fb3a 100644
--- a/rootfs-builder/euleros/config.sh
+++ b/rootfs-builder/euleros/config.sh
@@ -10,7 +10,7 @@ BASE_URL="http://developer.huawei.com/ict/site-euleros/euleros/repo/yum/${OS_VER
 
 GPG_KEY_FILE="RPM-GPG-KEY-EulerOS"
 
-PACKAGES="iptables"
+PACKAGES="iptables chrony"
 
 #Optional packages:
 # systemd: An init system that will start kata-agent if kata-agent
diff --git a/rootfs-builder/fedora/config.sh b/rootfs-builder/fedora/config.sh
index 10315c48a7..c11cbd55e2 100644
--- a/rootfs-builder/fedora/config.sh
+++ b/rootfs-builder/fedora/config.sh
@@ -9,7 +9,7 @@ OS_VERSION=${OS_VERSION:-28}
 
 MIRROR_LIST="https://mirrors.fedoraproject.org/metalink?repo=fedora-${OS_VERSION}&arch=\$basearch"
 
-PACKAGES="iptables"
+PACKAGES="iptables chrony"
 
 #Optional packages:
 # systemd: An init system that will start kata-agent if kata-agent
diff --git a/rootfs-builder/ubuntu/config.sh b/rootfs-builder/ubuntu/config.sh
index c23704f5f6..f2247e4ae6 100644
--- a/rootfs-builder/ubuntu/config.sh
+++ b/rootfs-builder/ubuntu/config.sh
@@ -12,7 +12,7 @@ OS_VERSION=${OS_VERSION:-18.04}
 OS_NAME=${OS_NAME:-"bionic"}
 
 # packages to be installed by default
-PACKAGES="systemd iptables init"
+PACKAGES="systemd iptables init chrony"
 
 DEBOOTSTRAP=${PACKAGE_MANAGER:-"debootstrap"}