According to status in ZCM, workstation time was set in the future (Last Full Refresh: 2/13/11).
The time is now correct.
Workstation in question is also a satellite server.
"Last Full Refresh" is stuck at some point in time on all workstations "closest" to server, new content (bundle) wasn't delivered since.
What is the best course of action?
How can one get rid of the wrong time stamps ?