OptionaltimerTimer specifies whih timers are attached to the vmi.
OptionaltimezoneTimezone sets the guest clock to the specified timezone. Zone name follows the TZ environment variable format (e.g. 'America/New_York').
OptionalutcUTC sets the guest clock to UTC on each boot. If an offset is specified, guest changes to the clock will be kept during reboots and are not reset.
Represents the clock and timers of a vmi.