I installed a Hyper-V 2019 1903 with proper network and graphics card drivers to support save energy (s3), as the virtual machine services are not required all the time (a branch office installation) and I want to save energy then. I also installed an Ubuntu 18.04.02 virtual machine. Now when I save energy and wake the machine some time later, the clock in the VM is behind current time.
I´d definitely appreciate if on resume of the host, the time within virtual machines would be adjusted automatically.
Am I missing a prerequesite for this to happen automatically?
I am working around the issue by saving the vms at suspend and (re-)starting them at resume, but this heavily depends on how exactly S3 is triggered.