Using ESXi 4.1, almost none of the ntpd commands gave me any output, but I was able to see the corrections happening in the /var/log/messages.Virtualization is a powerful technology, but it comes with its own host of monotonous and time-consuming tasks, no matter how big or small your organization is.

What I found was that NTP has a default maximum correction of about 1000 seconds.

I had this same issue, but if I set the clocks 3-4 minutes off, they would auto correct within about 15 minutes.

Click OK three times to save and apply your changes.

From the Configuration screen on your ESXi host, you should now see that the NTP Client is running, and it will also show the list of current NTP servers your host is using.

I had a customer once that experienced that scenario with a Domain Controller and a 2 hours drift: I let you guess the mess that resulted with the time in the domain, login problems, etc.

NTP is an Network Time Protocol which is used to sync the time with the NTP server whether it is local or outside. Step 6: NTP Service Status is stopped by default so Start the Service by clicking on the Start Button. In the NTP Server box Write the NTP Server Name according to your region.

Step 4: Click on the Edit button on the Right Side.

Step 5: Click on radio button “Use Network Time Protocol (Enable NTP Client) .

This means that the ESXi NTP server is running unsynchronized and is unable to provide a valid reference time to clients.