How do I set a TimeZone for VelocityTools DateTool?

Both the VelocityTools Tools Usage Summary and the DateTool Javadoc seem 
to indicate a configuration mechanism for setting a TimeZone, but I 
simply can't discover what that is.

DateTool's timezone setter is protected, and I don't want repeatedly 
pass a TimeZone into the overloaded format() methods.

VelocityTools 2.0

(Also asked on StackOverflow if you want to answer there
http://stackoverflow.com/questions/11907365/how-do-i-set-a-timezone-for-velocitytools-datetool 
)

Doug