What's going on with NTP?

I have two FreeBSD servers where the NTP daemons are using double digit CPU percentages today rather than the usual 0.01%. Restarting them didn't help. The clock on my Android phone is five hours slow. (It's not the time zone, I checked that.) Is this just my special Christmas present, or are there screwed up NTP servers? Regards, John Levine, johnl@iecc.com, Primary Perpetrator of "The Internet for Dummies", Please consider the environment before reading this e-mail. http://jl.ly