Time sync issue on VMs running on ESXi 5.0 3982828

[Jitu211003]

Hi,

We are facing Time sync issue on VMs. Randomly on different different VMs.

Suddenly time has pushed forward approx 4-5 hrs and the application show future date error.

Microsoft investigated and suggested us that Vmware tool service is causing the issue. We disabled the same for workaround.

We also tried reinstalling but that did not resolve that issue.

Can someone share the experience and solution.  Vmware says that ESXi 5.0 is out of support for technical troubleshooting.

Thanks

[TomHowarth]

where exactly are your VM's optaining their time from?  What is the OS these machines are running?  If Windows are they domain joined? if Linux where does NTP point too?  Where is your authoritative timesource?

[Jitu211003]

VMs are running inside windows server 2008 r2. its domain joined machine. DNS and time server working fine. Its time debug log generated on windows server through which Microsoft identified the vmtool service which is causing time issue.

It is suddenly changed to future time approx 4-5 hrs. ahead from current time.

[TomHowarth]

Where do your Domain Joined machines obtain their time from? it it from the PDC Emulator? or do you have timeservices integrated with vSphere via VMtools?

[planetshoots]

Check the NTP settings on Esxi Hosts whether its enabled and point to right NTP server,

[Magneet]

Like planetshoots​ says check time and ntp settings on the ESXi hosts. Even if time sync trough the vmtools is disabled in case a vmotion happens a sync will always be done to the ESXi hosts.

[Finikiez]

Hello!

VMware Tools just syncs time with ESXi host periodically. There are also some events when VM syncs time.

Disable all these parameters in with advanced parameters

Disabling Time Synchronization (1189) | VMware KB