A subscriber to Outages who wishes to remain nameless passes along the
pointer to this story: Apparently, either tick or tock got rebooted
yesterday, and came up with its local clock set to 2000. And lots of
people believed it.
https://isc.sans.edu/diary.html?n&storyid=14548
Did you believe it? Why?
(Yes, those are just rhetorical questions, intended to make people examine
their NTP architecture more closely. 
Cheers,
-- jra