You can configure a startup policy for the NTP or PTP service that runs on the host. You can also manually start, stop, or restart the respective service and in this way override the configured startup policy.


  1. In the vSphere Client home page, navigate to Home > Hosts and Clusters.
  2. Select a host.
  3. On the Configure tab, select System > Services.
  4. Change the status of the NTP or PTP service manually.
    Option Description
    Option Action
    Change the NTP service status
    1. Select NTP Daemon.
    2. Click Start, Stop, or Restart.
    Change the PTP service status
    1. Select PTP Daemon.
    2. Click Start, Stop, or Restart.
  5. (Optional) Select the NTP or PTP service and click Edit Startup Policy.
    Option Description
    Start and stop with port usage Starts or stops the service when a client port is activated or deactivated for access to the security profile of the host.
    Start and stop with host Starts and stops the service when the host powers on and shuts down.
    Start and stop manually You must manually control the status of the service.