The time synchronisation should be something we already monitor (WRT zabbix server) so apparently something is not working as expected. I will take a look.

So, the intel machine does not seem to have drifted, and time synchronization seems OK to me.
But the machine is not in the same timezone (PDT) as the BB master (UTC). Could that be a problem? Should the BB workers all be in UTC?

I have set the timezone to UTC, let me know vladbogo if this is something that we have to deploy on all BB worker.

Ok, as discussed, this needs more investigation. It's not easy to simulate time drift and using something like `date -s` does not seems to work (or make zabbix complain).