This is first and foremost a QEMU or linux bug (not sure which), it should really update its internal time after suspend. But I suppose ntp could also listen to resume events (perhaps through pm-utils' /usr/lib /pm-utils/sleep.d/ scripts); although this should already be covered by its existing if-up.d script, i. e. as soon as the VM gets back online after resuming /etc/network/if-up.d/ntpdate ought to run. It doesn't in your case?
** Package changed: systemd (Ubuntu) => qemu (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1157914 Title: time never catches up to reality after VM sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1157914/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs