Edit Time Configuration for a Host

We can configure the time settings on a host manually, or we can synchronize the time and date of the host by using an NTP server.

Procedure

If the vSphere client is connected directly to the host,on the host configuration tab click Time configuration > Properties

Select an option for setting the time and date of the host.
Manually configure the date and time on a host

Use Network Time Protocol (NTP Client Enable)
Synchronize the time and date of the host with an NTP server. The NTP service on the host periodically takes the time and date from the NTP server.
Now click on Options... menu

From the NTP Service Startup Policy, select an option for starting and stopping the NTP service on the host.

Start and stop with port usage - Starts or stops the NTP service when the NTP client port is enabled or disabled for access in the security profile of the host.
Start and stop with host - Starts and stops the NTP service when the host powers on or shuts down.
Start and stop manually - Enables manual starting and stopping of the NTP service.

Click on Add NTP Server

In the NTP Servers text box, type the IP addresses or host names of the NTP servers that you want to use and Click OK