Is that not possible to use vmware tools icon in the notification are of esxi5.1 vm to set like time sync that was possible in the earlier vSphere 5.0?
No, the GUI portion has been removed but you can still do these configurations from the command line.
No, the GUI portion has been removed but you can still do these configurations from the command line.
This should have what you need - http://www.vmware.com/pdf/vmware-tools-installation-configuration.pdf