diff --git a/inventories/group_vars/all.yml b/inventories/group_vars/all.yml
index 15c4414..314dfcf 100644
--- a/inventories/group_vars/all.yml
+++ b/inventories/group_vars/all.yml
@@ -44,3 +44,7 @@ all:
           62663735663834613033633032613763376462346333343165653538383038633762636337316361
           3738663863333931390a623839383165643363393537306635343237656337356534623036616465
           6532
+    ntp_servers:
+      - "ntp1.jst.mfeed.ad.jp"
+      - "ntp2.jst.mfeed.ad.jp"
+      - "ntp3.jst.mfeed.ad.jp"
diff --git a/requirements.yml b/requirements.yml
index dbb9096..5035f32 100644
--- a/requirements.yml
+++ b/requirements.yml
@@ -4,6 +4,7 @@ roles:
   - name: compscidr.gpg
   - name: geerlingguy.docker
   - name: geerlingguy.jenkins
+  - name: geerlingguy.ntp
   - name: mrlesmithjr.netplan
     src: https://github.com/mrlesmithjr/ansible-netplan
     version: 'f0167f5'
diff --git a/tasks/all/main.yml b/tasks/all/main.yml
index 225510b..2063dfb 100644
--- a/tasks/all/main.yml
+++ b/tasks/all/main.yml
@@ -25,6 +25,12 @@
   ansible.builtin.import_tasks:
     file: tasks/all/set-locale.yml
 
+- name: "Common / Set NTP"
+  ansible.builtin.import_tasks:
+    file: tasks/all/ntp.yml
+  tags:
+    - ntp
+
 - name: "Common / Put authorized Key for hayato"
   ansible.builtin.import_tasks:
     file: tasks/all/authorized_keys.yml
diff --git a/tasks/all/ntp.yml b/tasks/all/ntp.yml
new file mode 100644
index 0000000..2ed2073
--- /dev/null
+++ b/tasks/all/ntp.yml
@@ -0,0 +1,10 @@
+---
+- name: "Common / NTP Setting"
+  ansible.builtin.import_role:
+    name: geerlingguy.ntp
+  vars:
+    ntp_enabled: true
+    ntp_timezone: "Asia/Tokyo"
+    ntp_servers: "{{ all.vars.ntp_servers }}"
+    ntp_tinker_panic: true
+    ntp_manage_config: true