European clocks on Standard Time
until: Sunday 28 March 2010 01:00 GMT
then on
Summer Time / Daylight Savings Time
until: Sunday 31 October 2010 01:00 GMT
European Union Standard Time
dates here
Official WWW site of Lithuanian Parliament gives information only in Lithuanian language. The first link is to document, stating that Lithuania is in GMT+2 and second link is to document, stating that Lithuanian is going to use Summer Time: