A doubt about date

Well I my syncing between my lap and hx4700 is really a pain, so at the
end I sync contacts with opensync+gpesyncd and address and task with
multysinc+nsqld. Yes, it is horrible..

Well the point is whe I was syncing the Calendar I have noticed that an
event at 1:00pm in evoluton was showing 5:00 pm at gpe-calendar, I
thought it was because of the time zone, I copied my zonefile from my
laptop to the ipag and link it to /etc/localtime,.. so now I have the
correct time in both my lap and ipaq.

I sync the same event at 1:00 pm and the calendar shows it at 9:00 am.
The settings date/time tool Always shotws UTC/WET/GMT, My zone is
Mexico_City, GMT-6 normally and now is CDT GMT-5 because of Daylight
saving time.

The clock in familiar is fine  it shows CDT time, but the time in GPE is
not right.

Hoe do i fix timexone to CDT for GPE?