ESXi hosts
ESXi uses UTC time and does not support changing time zones.
In ESXi 3.5, you see the message:
Note: The date and time of the host have been translated to the local time of this VI Client.
In ESXi 4.x and ESXi 5.x, you see the message:
Note: The date and time of the host have been translated to the local time of this vSphere Client.