Tor requests an accurate UTC clock or it will be failed in connecting to Tor network, but I want another clock for other applications, is it possible and how to do to it?
After Tor have connected to network, it doesn't stop your connection if you change your clock. Is there any risk to Tor if changing clock? And what's the UTC clock?
Using Tor in different Virtual Machines won't effectively modify the need for Tor to work for .onion websites with UTC - which is part of the Tor anonymity strategy where all users are based on the UTC time versus each of 24 different Time Zones in order to increase anonymity for all user's anonymity - as I understand it. You should easily be able to install time zone files to display your time zone on the system you have booted Tor or in any Virtual Machine, but you will still be dependent on Tor being synchronized to UTC time via the Host Machine on which the VMs run. You can find a definition of UTC at Wikipedia.
