How do I change the time on my vCenter 6.5 appliance?

1. Start the vSphere Client, and connect to the ESXi host.
2. On the Configuration tab, click Time Configuration.
3. Click Properties, and click Options.
4. Select NTP Settings.
5. Click Add.
6. In the Add NTP Server dialog box, enter the IP address or fully qualified domain name of the NTP server to synchronize with.
7. Click OK.

1. Set tools.
2. Deselect Time synchronization between the virtual machine and the host operating system in the VMware Tools toolbox GUI of the guest operating system.
3. Run the VMwareService.exe -cmd "vmx.

1. Connect to the ESX/ESXi host using the vSphere Client.
2. Select a host in the inventory.
3. Click the Configuration tab.
4. Click Time Configuration.
5. Click Properties.
6. Click Options.
7. Click NTP Settings.
8. Click Add.

1. Disconnect the VM network from the outside world – in my case I was using Fusion and put it on a host-only network.
2. Disable any application services (SQL, etc.)
3. Disable the Windows time service (start/run/services.msc and disable the “Windows Time Service”)

Licensing and Editions

• vCenter Server for Essentials – can manage up to 3 ESXi hosts.
• vCenter Server Foundation – can manage up to 4 ESXi hosts.
• vCenter Server Standard – can manage an unlimited number of ESXi hosts.

1. On your chosen Web server, create a repository directory under the root: for example, vc_update_repo.
2. Extract the zipped bundle into the repository directory.
3. Open the management vCenter Virtual Appliance Web interface on port 5480.
4. In the Update tab, click Settings.
5. Select Use Specified Repository.

1. Download the patch (zip file) from the VMware website.
2. Extract the patch on the Windows machine in the web server folder under “C:Program FilesPoSHServerwebroothttpupdate“.
3. Before upgrading make sure you have a backup copy of the VCSA!
4. Click OK, check updates and use the “Check Repository” option. (

1. Gateway and DNS server: 192.168.101.2.
2. The name of the installation image is VMware-VCSA-all-7.0.
3. Click Upgrade and upgrade vCenter (VCSA) to vCenter 7.
4. Introduction.
5. End user license agreement.
6. Connect to source appliance.
7. Password: Enter the password for the ESXi root account.

1. Use the hostname command to obtain the machine name, and check that it matches the DNS name of the machine.
2. Check that vCenters are able to ping each other with their fully qualified domain names (FQDN). For example:
3. Use the nslookup command to verify the FQDN.
4. Ping the vCenter IP address with the -a switch.

1. Log in as an administrator to the server that is running vCenter Server.
2. Click Start > Run.
3. Type services.msc.
4. Press Enter.
5. From the list of services, right-click on the service you wish to restart.
6. Click Restart and wait for the service to complete restarting.

1. In the vCenter Server Appliance Management Interface, click Time.
2. Configure the system time zone settings. In the Time zone pane, click Edit.
3. Configure the time synchronization settings. In the Time synchronization pane, click Edit.

1. Log into vCenter.
2. Select the ESXi host to configure.
3. Select the Configure tab, then navigate to System > Time Configuration.
4. Click “Edit”
5. Select “Use Network Time Protocol (Enable NTP client)”
6. Specify your NTP server(s)
7. Select your service startup policy.
8. Click “OK”

UTC Date and Time in Various Formats.

1. Open the vSphere Client and connect to vCenter Server.
2. Right-click the virtual machine you deployed from OVF and click Edit Settings > Options > VMware Tools.
3. Under Advanced, select the Synchronize guest time with host option and click OK.