VS's window for managing Nuget packages doesn't show the correct time for when a package was last updated. I assume this time is the last time VS checked to see whether there was an update to a Nuget package, instead of the date at which the Nuget package was last updated. This should be fixed.
Also, the date seems to be shown in UTC time instead of local time. IE, the update time for every package is 12/11/2012 on my machine, but it's 12/10 today. If the time was a UTC time, then the date would be 12/11.