6.7

Procedure
1 Browse to the host in the vSphere Client.
2 Click the Configure tab.
3 Under System, click Advanced System Settings.
4 In Advanced System Settings, select the appropriate item.
5 Click the Edit button and change the value.
6 Click OK.
Synchronizing Clocks on the vSphere Network
Verify that all components on the vSphere network have their clocks synchronized. If the clocks on the
machines in your vSphere network are not synchronized, SSL certificates, which are time-sensitive, might
not be recognized as valid in communications between network machines.
Unsynchronized clocks can result in authentication problems, which can cause the installation to fail or
prevent the vCenter Server Appliance vpxd service from starting.
Verify that any Windows host machine on which vCenter Server runs is synchronized with the Network
Time Server (NTP) server. See the Knowledge Base article http://kb.vmware.com/kb/1318.
To synchronize ESXi clocks with an NTP server, you can use the VMware Host Client. For information
about editing the time configuration of an ESXi host, see vSphere Single Host Management.
Edit Time Configuration for a Host
You can configure the time settings on a host manually, or you can synchronize the time and date of the
host by using an NTP server.
Procedure
1 In the vSphere Client, navigate to the host in the vSphere inventory.
2 Select Configure.
3 Under System, select Time Configuration and click Edit.
vCenter Server and Host Management
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