rolm

Go to the LC Win menu Special/Direct AMO Dialog.

Type

<cha-date:
YEAR = 2008
MONTH = 3
DAY = 20
HOUR = 8
MINUTE = 50;

Then do follow commands and forget about DST for next 7years.

ADD-SONUS:2008,11,2,STD;
ADD-SONUS:2009,3,8,DLS;
ADD-SONUS:2009,11,1,STD;
ADD-SONUS:2010,3,14,DLS;
ADD-SONUS:2010,11,7,STD;
ADD-SONUS:2011,3,13,DLS;
ADD-SONUS:2011,11,6,STD;
ADD-SONUS:2012,3,11,DLS;
ADD-SONUS:2012,11,4,STD;
ADD-SONUS:2013,3,10,DLS;
ADD-SONUS:2013,11,3,STD;
ADD-SONUS:2014,3,9,DLS;
ADD-SONUS:2014,11,2,STD;
ADD-SONUS:2015,3,8,DLS;
ADD-SONUS:2015,11,1,STD;