[Zope] GMT offset

[Ian McMeans]

For some odd reason, <b tal:replace="here/bobobase_modification_time"/>
returns a string like "2002/05/27 15:44:11.431 GMT-7". Now, this would
normally be acceptable, except I'm in GMT -8!!

Is there a way I can change that GMT offset? Also, is there a way I can
change the bobobase formatting? (ie hh:mm DD/MM/YY GMT). I found
documentation for DTML but not for ZPT formatting, and my experiment at
using similar style formatting failed =)