Before you install vCenter Single Sign On, the vSphere Web Client, or the vCenter Server appliance, make sure all machines on the vSphere network have their clocks synchronized.

1

From the vSphere Web Client, connect to the vCenter Server.

2

Select the host in the inventory.

3

Select the Manage tab.

4

Select Settings.

5

Select Time Configuration.

6

Click Edit.

7

Select Use Network Time Protocol (Enable NTP Client).

8

Set the NTP Service Status and NTP Service Startup Policy.

9

Enter the IP addresses of the NTP servers to synchronize with.

The host synchronizes with the NTP servers as specified in your settings.